Anurag Jayswal Dilip Kumar Rajnish Kumar Second order duality for nondifferentiable multiobjective programming problem involving (<i>F</i>, <i>alpha</i>, <i>rho</i>, <i>d</i>)-<i>V</i>-type I functions. 211-226 2010 4 Optimization Letters 2 http://dx.doi.org/10.1007/s11590-009-0159-0 db/journals/ol/ol4.html#JayswalKK10