Derivatives of a new heteroaromatic system —11-thia-4b,6,10,12-tetraazaindeno[2,1-a]-fluorene
1997 ◽
Vol 33
(6)
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pp. 752-753
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1974 ◽
Vol 63
(2)
◽
pp. 213-219
Keyword(s):
1974 ◽
Vol 63
(2)
◽
pp. 159-165
◽