CRYSTAL AND MOLECULAR-STRUCTURE OF 1,2,3,4,4A-BETA,5,6,7,7A,8,8A,9,9A-BETA,9B-TETRADECAHYDRO-4-ALPHA,7A-BETA,9B-ALPHA-TRIMETHYL-6A, 8-METHANO-6AH-CYCLOPROPA[B]PHENANTHRENE-4-CARBOXYLIC ACID

1. SANNI, SB
2. BEHM, H
3. GARCIAGRANDA, S
4. BEURSKENS, PT
5. MOERS, FG