@article {2075, title = {Computational efficiency of minimal cooperation and distribution in polarizationless P systems with active membranes}, journal = {Fundamenta Informaticae}, volume = {153}, year = {2017}, pages = {147{\textendash}172}, doi = {10.3233/FI-2017-1535}, author = {Luis Valencia-Cabrera and David Orellana-Mart{\'\i}n and Miguel A. Mart{\'\i}nez-del-Amor and Agust{\'\i}n Riscos-N{\'u}{\~n}ez and Mario J. P{\'e}rez-Jim{\'e}nez} }