Investigation of the splitting of quark and gluon jets - Abreu,P; Adam,W; Adye,T; Adzic,P; Ajinenko,I; Alekseev,GD; Alemany,R; Allport,PP; Almehed,S; Amaldi,U; Amato,S; Andersson,P; et al. (EUROPEAN PHYSICAL JOURNAL C, 1998)