Periodica Mathematica Hungarica > 2019 > 78 > 1 > 31-37
Source
Abstract
Identifiers
journal ISSN : | 0031-5303 |
journal e-ISSN : | 1588-2829 |
DOI | 10.1007/s10998-018-0250-3 |
Periodica Mathematica Hungarica > 2019 > 78 > 1 > 31-37
journal ISSN : | 0031-5303 |
journal e-ISSN : | 1588-2829 |
DOI | 10.1007/s10998-018-0250-3 |