Lettera Matematica > 2014 > 2 > 1-2 > 75-78
Source
Abstract
Identifiers
journal ISSN : | 2281-6917 |
journal e-ISSN : | 2281-5937 |
DOI | 10.1007/s40329-014-0040-6 |
Lettera Matematica > 2014 > 2 > 1-2 > 75-78
journal ISSN : | 2281-6917 |
journal e-ISSN : | 2281-5937 |
DOI | 10.1007/s40329-014-0040-6 |