TY  - BOOK
AU  - Kutzelnigg, W.
TI  - Topics in current chemistry 22: Sigma and Pi electrons in organic compounds
SN  - 3-540-05473-1
PY  - 1971///
CY  - Berlin
PB  - Springer-Verlag
UR  - http://krc.clri.res.in:80/cgi-bin/koha/opac-detail.pl?biblionumber=5316
ER  -