@article{04024000, title = {<title-group xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"><article-title xml:lang="en"><math><mi>$\lambda$</mi></math>-similar bases.</article-title></title-group>}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {10}, year = {1987}, pages = {227-232}, doi = {10.1155/S0161171287000292}, zbl = {0629.46007}, language = {en}, url = {http://dml.mathdoc.fr/item/04024000} }
Gupta, Manjul; Kamthan, P.K.. International Journal of Mathematics and Mathematical Sciences, Tome 10 (1987) pp. 227-232. doi : 10.1155/S0161171287000292. http://gdmltest.u-ga.fr/item/04024000/ -similar bases.