@Article{POWENPS2012,
    author  = {Vasile, Cristian Ioan and Pavel, Ana Br\^{a}ndu\c{s}a and Dumitrache, Ioan and P\u{a}un, Gheorghe},
    title   = {{On the Power of Enzymatic Numerical P Systems}},
    month   = {September},
    year    = {2012},
    journal = {{Acta Informatica}},
    volume  = {49},
    number  = {6},
    pages   = {395--412},
    note    = {if=0.809, \href{http://www.springerlink.com/content/x77850021373gh64/}{doi:10.1007/s00236-012-0166-y}}
}