This is BibTeX, Version 0.99d (TeX Live 2025) Capacity: max_strings=200000, hash_size=200000, hash_prime=170003 The top-level auxiliary file: main.aux White space in argument---line 21 of file main.aux : \citation{HANDBOOK : ON HYBRID SYSTEMS CONTROL} I'm skipping whatever remains of this command The style file: ieeetr.bst Database file #1: references.bib Warning--entry type for "gentillon_westinghouse_1999" isn't style-file defined --line 32 of file references.bib Warning--entry type for "operator_statistics" isn't style-file defined --line 45 of file references.bib Warning--entry type for "10CFR50.54" isn't style-file defined --line 59 of file references.bib Warning--empty author in WRPS.Description Warning--empty year in WRPS.Description Warning--empty journal in hogberg_root_2013 Warning--empty year in hogberg_root_2013 Warning--empty journal in zhang_analysis_2025 Warning--empty year in zhang_analysis_2025 You've used 15 entries, 1876 wiz_defined-function locations, 555 strings with 5820 characters, and the built_in function-call counts, 2404 in all, are: = -- 221 > -- 100 < -- 2 + -- 42 - -- 27 * -- 143 := -- 371 add.period$ -- 18 call.type$ -- 15 change.case$ -- 18 chr.to.int$ -- 0 cite$ -- 21 duplicate$ -- 102 empty$ -- 259 format.name$ -- 27 if$ -- 575 int.to.chr$ -- 0 int.to.str$ -- 15 missing$ -- 2 newline$ -- 52 num.names$ -- 14 pop$ -- 64 preamble$ -- 1 purify$ -- 0 quote$ -- 0 skip$ -- 78 stack$ -- 0 substring$ -- 44 swap$ -- 22 text.length$ -- 2 text.prefix$ -- 0 top$ -- 0 type$ -- 0 warning$ -- 6 while$ -- 18 width$ -- 17 write$ -- 128 (There was 1 error message)