Search for the standard model Higgs boson in e+e- collisions at √s=161-172 GeV - Ackerstaff,K; Alexander,G; Allison,J; Altekamp,N; Anderson,KJ; Anderson,S; Arcelli,S; Asai,S; Axen,D; Azuelos,G; Ball,AH; Barberio,E; et al. (EUROPEAN PHYSICAL JOURNAL C, 1998)