共 22 条
[1]
Akram M., 2013, ITALIAN J PURE APPL, V31, P426
[4]
Akram M, 2017, J DISCRET MATH SCI C, V20, P1597, DOI 10.1080/09720529.2015.1117221
[9]
Alshehri NO, 2015, ARS COMBINATORIA, V121, P385