This is BibTeX, Version 0.99d (TeX Live 2020/Debian) Capacity: max_strings=200000, hash_size=200000, hash_prime=170003 The top-level auxiliary file: Numerical_Methods_on_Manifolds.aux The style file: acm.bst Database file #1: bibfile.bib Warning--there's a number but no series in berndt2001introduction You've used 1 entry, 2253 wiz_defined-function locations, 533 strings with 4030 characters, and the built_in function-call counts, 259 in all, are: = -- 24 > -- 7 < -- 0 + -- 4 - -- 2 * -- 15 := -- 50 add.period$ -- 4 call.type$ -- 1 change.case$ -- 3 chr.to.int$ -- 0 cite$ -- 2 duplicate$ -- 12 empty$ -- 24 format.name$ -- 2 if$ -- 53 int.to.chr$ -- 0 int.to.str$ -- 1 missing$ -- 2 newline$ -- 8 num.names$ -- 2 pop$ -- 6 preamble$ -- 1 purify$ -- 3 quote$ -- 0 skip$ -- 5 stack$ -- 0 substring$ -- 6 swap$ -- 2 text.length$ -- 0 text.prefix$ -- 0 top$ -- 0 type$ -- 2 warning$ -- 1 while$ -- 2 width$ -- 2 write$ -- 13 (There was 1 warning)