bib­tex – Pro­cess bib­li­ogra­phies for LaTeX, etc

BibTeX al­lows the user to store his ci­ta­tion data in generic form, while print­ing ci­ta­tions in a doc­u­ment in the form spec­i­fied by a BibTeX style, to be spec­i­fied in the doc­u­ment it­self (one of­ten needs a LaTeX ci­ta­tion-style pack­age, such as nat­bib as well).
BibTeX it­self is an ASCII-only pro­gram; there is, how­ever, a ver­sion that copes with 8-bit char­ac­ter sets. How­ever, BibTeX’s fa­cil­i­ties rapidly run out as one moves away from sim­ple ASCII (for ex­am­ple, in the var­i­ous na­tional sort­ing rules for lan­guages ex­pressed in dif­fer­ent parts of ISO-8859 — the “ISO Latin” se­ries). For more flex­i­bil­ity, the user is urged to con­sider us­ing biber with bibla­tex to type­set its out­put. In par­tic­u­lar, it is best to avoid BibTeX in favour of bibla­tex, if at all pos­si­ble.