<s>
Ei	B-Library
Compendex	I-Library
is	O
an	O
engineering	O
bibliographic	B-Library
database	I-Library
published	O
by	O
Elsevier	O
.	O
</s>
<s>
The	O
name	O
"	O
Compendex	B-Library
"	O
stands	O
for	O
COMPuterized	O
ENgineering	B-Library
inDEX	I-Library
.	O
</s>
<s>
It	O
started	O
in	O
1884	O
under	O
the	O
name	O
Engineering	B-Library
Index	I-Library
(	O
Ei	O
)	O
and	O
its	O
first	O
electronic	O
bulletin	O
was	O
issued	O
in	O
1967	O
.	O
</s>
<s>
Ei	B-Library
Compendex	I-Library
currently	O
contains	O
over	O
20	O
million	O
records	O
as	O
of	O
December	O
2020	O
and	O
references	O
over	O
5,000	O
international	O
sources	O
including	O
journals	O
,	O
conferences	O
and	O
trade	O
publications	O
.	O
</s>
<s>
Coverage	O
of	O
engineering	O
subjects	O
include	O
nuclear	O
technology	O
,	O
bioengineering	O
,	O
transportation	O
,	O
chemical	O
and	O
process	O
engineering	O
,	O
light	O
and	O
optical	O
technology	O
,	O
agricultural	O
engineering	O
and	O
food	O
technology	O
,	O
computers	O
and	O
data	B-General_Concept
processing	I-General_Concept
,	O
applied	O
physics	O
,	O
electronics	O
and	O
communications	O
,	O
control	O
,	O
civil	O
,	O
mechanical	O
,	O
materials	O
,	O
petroleum	O
,	O
aerospace	O
and	O
automotive	O
engineering	O
as	O
well	O
as	O
multiple	O
subtopics	O
within	O
all	O
these	O
and	O
other	O
major	O
engineering	O
fields	O
.	O
</s>
