<s>
Ulrich	B-Library
's	I-Library
Periodicals	I-Library
Directory	I-Library
(	O
,	O
and	O
)	O
is	O
the	O
standard	O
library	O
directory	O
and	O
database	B-Library
providing	O
information	O
about	O
popular	O
and	O
academic	O
magazines	O
,	O
scientific	O
journals	O
,	O
newspapers	O
and	O
other	O
serial	O
publications	O
.	O
</s>
<s>
It	O
is	O
now	O
also	O
supplied	O
on-line	O
as	O
Ulrichsweb	B-Library
,	O
which	O
provides	O
web-based	O
and	O
Z39.50	B-Protocol
linking	O
to	O
library	O
catalogs	O
.	O
</s>
<s>
Bowker	O
,	O
it	O
moved	O
to	O
CSA	B-Library
,	O
a	O
fellow	O
subsidiary	O
of	O
Cambridge	O
Information	O
Group	O
,	O
in	O
2006	O
.	O
</s>
<s>
Following	O
the	O
merger	O
of	O
CSA	B-Library
and	O
ProQuest	B-Library
,	O
Ulrich	B-Library
's	I-Library
moved	O
to	O
ProQuest	B-Library
subsidiary	O
Serials	B-Library
Solutions	I-Library
.	O
</s>
