ABNF journal

Articles in SafetyLit
Y-Axis = Volume :: X-Axis = Issue
?=unknown status :: X=no issue published :: nn=articles from issue :: A=relevant article(s) IDed to add
S=searched, nothing relevant :: O=issue published but not yet searched :: C=combination issue

	1	2	3	4	6

2 (1991)	?	?	?	1	?
4 (1993)	?	?	?	1	?
10 (1999)	?	?	?	1	?
11 (2000)	1	1	?	?	?
12 (2001)	?	2	?	?	?
13 (2002)	?	?	?	?	1
15 (2004)	1	4	?	?	?
17 (2006)	?	?	?	1	?
21 (2010)	?	?	?	2	?
23 (2012)	?	?	1	?	?