SEARCH FOR HEAVY NEUTRAL HIGGS BOSONS IN 2-DOUBLET MODELS - ABREU,P; ADAM,W; ADYE,T; AGASI,E; AJINENKO,I; ALEKSAN,R; ALEKSEEV,GD; ALLPORT,PP; ALMEHED,S; ALMEIDA,FML; ALVSVAAG,SJ; AMALDI,U; et al. (ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1995)