Herschel Planetary Nebula Survey (HerPlaNS): Hydrogen Recombination Laser Lines in Mz 3

Isabel Aleman, Katrina Exter, Toshiya Ueta, Samuel Walton, A G G M Tielens, Albert Zijlstra, Rodolfo Montez, Zulema Abraham, Masaaki Otsuka, Pedro P.B. Beaklini, Peter A.M. van Hoof, Eva Villaver, Marcelo L Leal-Ferreira, Edgar Mendoza, Jacques D.R. Lepine