%0 Journal Article %A PREDA, PETRE %A POGAN, ALIN %A PREDA, CIPRIAN %T ON ${\bf (a,b)}$-DICHOTOMY FOR EVOLUTIONARY PROCESSES ON A HALF-LINE %J Glasgow mathematical journal %D 2004 %P 217-225 %V 46 %N 2 %U http://geodesic.mathdoc.fr/articles/10.1017/S0017089504001715/ %R 10.1017/S0017089504001715 %F 10_1017_S0017089504001715