Lettera Matematica > 2013 > 1 > 4 > 177-178
Source
Abstract
Identifiers
journal ISSN : | 2281-6917 |
journal e-ISSN : | 2281-5937 |
DOI | 10.1007/s40329-014-0030-8 |
Lettera Matematica > 2013 > 1 > 4 > 177-178
journal ISSN : | 2281-6917 |
journal e-ISSN : | 2281-5937 |
DOI | 10.1007/s40329-014-0030-8 |