Crystal and molecular structure of 13-14 dicarboethoxy heptacyclo[10.2.2.15,8.02,6.02,11.04,9.07,11]heptadecane-15-ene 3,10 dione - Dhaneshwar, N. N. (Springer, 1991)
In: 21 (1991), S. 653-656