LaTex Compiler thinks that &quot;_&quot; in biblio file is a mathematical expression that represents the beginning of subscript letter. Which library should I use or what should I do? My sample code is as follows: \begin{filecontents*}{example.eps}  gsave newpath   20 20 moveto   20 220 lineto   220 220 lineto   220 20 lineto closepath 2 setlinewidth gsave   .4 setgray fill grestore stroke grestore \end{filecontents*}  \RequirePackage{fix-cm}  \documentclass[smallextended]{svjour3}  \smartqed \usepackage{graphicx}  \journalname{Journal of Cryptographic Engineering}   \usepackage[acronym,toc,shortcuts]{glossaries} \usepackage{amsmath} \usepackage{graphicx} \usepackage{lineno} \usepackage{array} \usepackage{longtable}  \begin{document}  \cite{10.1007/3-540-44983-3_4}  \bibliographystyle{spmpsci} \bibliography{biblio}  \end{document}  My biblio file is as follows: @InProceedings{10.1007/3-540-44983-3_4, author=&quot;Aoki, Kazumaro and Ichikawa, Tetsuya and Kanda, Masayuki and Matsui, Mitsuru and Moriai, Shiho and Nakajima, Junko and Tokita, Toshio&quot;, editor=&quot;Stinson, Douglas R. and Tavares, Stafford&quot;, title=&quot;Camellia: A 128-Bit Block Cipher Suitable for Multiple Platforms --- Design and Analysis&quot;, booktitle=&quot;Selected Areas in Cryptography&quot;, year=&quot;2001&quot;, publisher=&quot;Springer Berlin Heidelberg&quot;, address=&quot;Berlin, Heidelberg&quot;, pages=&quot;39--56&quot;, isbn = &quot;978-3-540-44983-6&quot;, doi = &quot;10.1007/3-540-44983-3_4&quot; }
I'm trying to include a link to some code on OneDrive; the link includes an underscore, which is causing a lot of trouble.  I tried adding the entry like this:  @misc{code,     title = {Code},     url = {https://1drv.ms/link_link} }   I use \usepackage{url} and \bibliographystyle{IEEEtran}. Everything compiles fine and the bibliography shows the correct entry. However, if you click the link, it opens a page at https://1drv.ms/link - so ignoring the underscore and everything after it, which leads to a wrong page. Even copy and paste from the PDF doesn't work since the underscore is copied as space, which again is a broken link.  How can I add the link such that it can be clicked and copied properly? I tried \_, \usepackage{underscore}, {{link}}, different bibtex entries but nothing worked. Also all the related questions/answers don't answer mine.
In , I used quotes to demark specific terms, but after I posted the question, I wondered if I'm doing it right.  Usually, when quoting something a person says, the quotation mark goes after the comma or period, like so:     "This is my opinion," she said.   However, I sometimes use quotes not to represent something said by anyone, but instead for delineating a set term or phrase to make it clear that those words go together and none of them should be mistaken for a part of the rest of the sentence. Like this:     Should I say "stand up", "standup", or "stand-up"?   This looks weird to me:     Should I say "stand up," "standup," or "stand-up"?   ... but maybe I'm wrong about the rules.  Is it correct to use quotes in this way? And if so, are the quotes positioned correctly relative to the other punctuation marks?  Are there other alternatives for delineating terms without the use of quotes? How is the derivative of $\mbox{Trace}\left\{ X^T A X B\right\}$ with respect to matrix $X$ equal to $AXB + A^TXB^T$?  \begin{align}   \nabla_X \ \textrm{Trace}\left\{ X^T A X B\right\} = AXB + A^TXB^T \end{align}  where $A$ and $B$ matrices are given. '₴' is a currency sign used for the Ukrainian Hryvnia. It's in Unicode since 2004. I want to use it in spreadsheets as a sign for money values, but Google Spreadsheets doesn't understand it as a number if I add it after or before my value in the cell. How do I make Google Spreadsheets understand it's currency and display it as a number in my desired format? Add scratches to a material in Cycles? Proof that all abelian simple groups are cyclic groups of prime order How do you run Ubuntu Server with a GUI? How Get Parent Field in Attachment? Please Help me...  Account sObject is Parent of Attachment. Now I want to bring Read-only Field Custom field (isReadOnly__c).  SELECT Id, Name, Account.isReadOnly__c FROM Attachment   How It Gets ?  Thanks in Advance  Manu How to use notify-send with crontab? I really read many tutorials, but crontab doesn't start notify send.  What I've tried:   etc/crontab  added at the end:  15 * * * * notify-send 'crontab' 'test'  with crontab interface:  crontab -e   added at the end:  15 * * * * notify-send 'crontab' 'test' How do I show that $\sum_{cyc} \frac {a^6}{b^2 + c^2} \ge \frac {abc(a + b + c)}2?$ Let $a, b, c$ be positive real numbers, show that  $$\frac {a^6}{b^2 + c^2} + \frac {b^6}{c^2 + a^2} + \frac {c^6}{a^2 + b^2} \ge \frac {abc(a + b + c)}2.$$  I think this is likely to turn out to be proved by Hölder, but I can't see how. Any hints will be appreciated. Arrows describing matrix Lets say I have a 5x5 matrix. I want to place 2 leftrightarrows (with descriptions "3", "2") underneath the matrix, but really close to it: first pointing from col1 to col3 and second from col4 to col5. Plus updownarrows with similar outcome. How can I achieve that?  draft:  1 1 1 | 1 1  &lt;--> &lt;-> Target filesystem doesn't have requested /sbin/init Been trying to this line to parse for a good 20mins, but all attempts have failed:  \beta = $-$0.84, t = $-$2.09, P = 0.04   Could anyone tell me why I'm getting a Missing $ inserted error here? How can I make a surface look wet in cycles? I am trying to recreate a wet road with lights reflecting off of it. I started by making the object glossy but this did not give a very realistic look  I think I need to increase the specularity of the reflection to make it look more real but I can't find this option anywhere in cycles. Also what other techniques can I use to make a surface look wet in blender? I can link directly due to licening but  is what I am trying to recreate. Prove that if $\gcd(a,b)=1$ then $\gcd(ab,c) = \gcd(a,c) \gcd(b,c)$ What Does it Really Mean to Have Different Kinds of Infinities? Can someone explain to me how there can be different kinds of infinities?  I was reading "" by  and came across the concept of countable and uncountable infinities, but they're only words to me.  Any help would be appreciated. How could I get the terminal to be launched once I have logged in, so that typing commands is much simpler? QTimer can only be used with threads started with QThread Sometimes when adding an object to the scene I see that all options (on toolbar or in window after pressing F6) are disabled. Can anyone tell me when can this happen? What is causing it and how to revert it - make it enabled again. It worked for me when I restarted Blender and reloaded the scene. However I would really like to know what can cause it? Difference between spin and polarization of a photon I understand how one associates the spin of a quantum particle, e.g. of a photon, with intrinsic angular momentum. And in electromagnetism I have always understood the polarization of an EM wave as the oscillations of the E and M field, not necessarily being  aligned with the direction of propagation of the wave.     Questions:   But when one talks about the polarization of a photon in Quantum Mechanics, how does it really differ from its spin?  Are they somehow related and what's the physical idea behind photon polarization in contrast to photon-spin? Feel free to use mathematical reasonings as well if you see it fit! What caused the oathbreakers in the Paths of the Dead to turn into shades? In Return of the King, we are told that the shades who populate the Paths of the Dead are the spirits of oathbreakers who refused to aid Isildur in the first fight against Sauron.  First, we are told of the oath (Book 5, Chapter 2):     But the oath that they broke was to fight against Sauron... For at Erech there stands a stands yet a stone that was brought, it is said, from Númenor by Isildur... and upon it the King of the Mountains swore allegiance to him in the beginning of the realm of Gondor.   Then, when they fail to honor the oath, we are told about Isildur's curse on them:     "...this curse I lay upon thee and thy folk: to rest never until your oath is fulfilled."   And as we see in the following chapters, the Sleepless Dead are indeed subject to this curse exactly as Isildur descibed it. What seems less clear, however, is how Isildur's curse manages to alter the fundamental nature of the oathbreakers' mortality, so that they became undead shades instead of simply dying in disgrace.   Do we have any other examples of Isildur performing similar acts of magic? Based on what we are told in LotR, Isildur appears to have been a great warrior, but not a regular practitioner of magic. Is the stone at Erech somehow magically involved? (If so, do we know anything more about it or how it works? Does its origin in Númenor have any significance?) It is mentioned that the oathbreakers had worshiped Sauron; could this be a clue?