This is BibTeX, Version 0.99d (TeX Live 2021/Arch Linux)
Capacity: max_strings=200000, hash_size=200000, hash_prime=170003
The top-level auxiliary file: temp//presentation.aux
The style file: plain.bst
Database file #1: LaTeX/presentation.bib
Warning--to sort, need author or key in nasa_voyager
You've used 2 entries,
            2118 wiz_defined-function locations,
            508 strings with 4311 characters,
and the built_in function-call counts, 514 in all, are:
= -- 44
> -- 24
< -- 0
+ -- 10
- -- 8
* -- 36
:= -- 85
add.period$ -- 4
call.type$ -- 2
change.case$ -- 10
chr.to.int$ -- 0
cite$ -- 3
duplicate$ -- 18
empty$ -- 46
format.name$ -- 8
if$ -- 107
int.to.chr$ -- 0
int.to.str$ -- 2
missing$ -- 1
newline$ -- 11
num.names$ -- 2
pop$ -- 13
preamble$ -- 1
purify$ -- 8
quote$ -- 0
skip$ -- 17
stack$ -- 0
substring$ -- 19
swap$ -- 2
text.length$ -- 0
text.prefix$ -- 0
top$ -- 0
type$ -- 8
warning$ -- 1
while$ -- 3
width$ -- 3
write$ -- 18
(There was 1 warning)