%0 Generic %D 2016 %T Polarizationless P Systems with Active Membranes: Computational Complexity Aspects %A Luis Valencia-Cabrera %A David Orellana-Martín %A Miguel A. Martínez-del-Amor %A Agustín Riscos-Núñez %A Mario J. Pérez-Jiménez %N 1-2 %P 107–123 %V 21