Collect. Czech. Chem. Commun.
1975, 40, 3459-3468
https://doi.org/10.1135/cccc19753459
Mesoionic compounds. Sydnones and their photochromic properties
M. Šorm and S. Nešpůrek
Collect. Czech. Chem. Commun.
1975, 40, 3459-3468
https://doi.org/10.1135/cccc19753459