Pure Appl. Chem., 1980, Vol. 52, No. 4, pp. 1013-1020
http://dx.doi.org/10.1351/pac198052041013
Large-ring phosphorus heterocycles
First page:

Pure Appl. Chem., 1980, Vol. 52, No. 4, pp. 1013-1020
http://dx.doi.org/10.1351/pac198052041013