This is BibTeX, Version 0.99d (TeX Live 2015/Debian)
Capacity: max_strings=35307, hash_size=35307, hash_prime=30011
The top-level auxiliary file: EP note.aux
The style file: plain.bst
Database file #1: reference.bib
Warning--empty publisher in MPI
You've used 3 entries,
            2118 wiz_defined-function locations,
            517 strings with 4580 characters,
and the built_in function-call counts, 1109 in all, are:
= -- 98
> -- 58
< -- 1
+ -- 23
- -- 20
* -- 73
:= -- 183
add.period$ -- 9
call.type$ -- 3
change.case$ -- 18
chr.to.int$ -- 0
cite$ -- 4
duplicate$ -- 49
empty$ -- 90
format.name$ -- 20
if$ -- 237
int.to.chr$ -- 0
int.to.str$ -- 3
missing$ -- 4
newline$ -- 18
num.names$ -- 6
pop$ -- 31
preamble$ -- 1
purify$ -- 16
quote$ -- 0
skip$ -- 31
stack$ -- 0
substring$ -- 43
swap$ -- 13
text.length$ -- 1
text.prefix$ -- 0
top$ -- 0
type$ -- 10
warning$ -- 1
while$ -- 8
width$ -- 4
write$ -- 33
(There was 1 warning)