O  Biham, Furman, I , Katz, N, Pirronello, V , and Vidali, G . 1998. ?H-2 Formation On Interstellar Grains In Different Physical Regimes?. Monthly Notices Of The Royal Astronomical Society, 296, Pp. 869-872. doi:10.1046/j.1365-8711.1998.01427.x.