中国科学院数学与系统科学研究院期刊网
Proportionally Modular Diophantine Inequalities and Their Multiplicity
Jose Carlos ROSALES, Manuel Batista BRANCO, Paulo VASCO
Acta Mathematica Sinica . 2010, (11): 2059 -2070 .  DOI: 10.1007/s10114-010-7573-1