1990 ◽
Vol 12
(2)
◽
pp. 35-42
◽
Keyword(s):
2002 ◽
Vol 154-155
◽
pp. 571-576
◽
Keyword(s):
2001 ◽
Vol 109
(1272)
◽
pp. 656-660
Keyword(s):
1990 ◽
Vol 87
(1)
◽
pp. 245-249
◽
1982 ◽
Vol 17
(10)
◽
pp. 1233-1239
◽
Keyword(s):
2008 ◽
Vol 47
(9)
◽
pp. 7678-7684
◽
Keyword(s):