@article{GDZPPN00203381X, title = {The strength of nonstationary iteration.}, journal = {Aequationes mathematicae}, volume = {25}, year = {1982}, pages = {243-260}, zbl = {0543.65025}, url = {http://dml.mathdoc.fr/item/GDZPPN00203381X} }
Wasilkowski, G.W. The strength of nonstationary iteration.. Aequationes mathematicae, Tome 25 (1982) pp. 243-260. http://gdmltest.u-ga.fr/item/GDZPPN00203381X/