@article{GDZPPN002294826, title = {Problems in Linked Operators. II.}, journal = {Mathematische Annalen}, volume = {161}, year = {1965}, pages = {233-256}, zbl = {0158.14703}, url = {http://dml.mathdoc.fr/item/GDZPPN002294826} }
CARROLL, R. Problems in Linked Operators. II.. Mathematische Annalen, Tome 161 (1965) pp. 233-256. http://gdmltest.u-ga.fr/item/GDZPPN002294826/