@article{01751284,
title = {Some conditions on Douglas algebras that imply the invariance of the minimal envelope map.},
journal = {International Journal of Mathematics and Mathematical Sciences},
volume = {25},
year = {2001},
pages = {615-624},
doi = {10.1155/S0161171201004148},
zbl = {1029.46075},
language = {en},
url = {http://dml.mathdoc.fr/item/01751284}
}
Guillory, Carroll. Some conditions on Douglas algebras that imply the invariance of the minimal envelope map.. International Journal of Mathematics and Mathematical Sciences, Tome 25 (2001) pp. 615-624. doi : 10.1155/S0161171201004148. http://gdmltest.u-ga.fr/item/01751284/