@article{01381101, title = {On expansions of Gaussian integers with non-negative digits.}, journal = {Mathematica Pannonica}, volume = {10}, year = {1999}, pages = {177-191}, zbl = {0930.11077}, language = {en}, url = {http://dml.mathdoc.fr/item/01381101} }
Kovács, Attila. On expansions of Gaussian integers with non-negative digits.. Mathematica Pannonica, Tome 10 (1999) pp. 177-191. http://gdmltest.u-ga.fr/item/01381101/