Search for nucleon decay with final states l+η0, ν̄η0, and ν̄π+,0 using Soudan 2 (Physical Review D, 2000)

(untitled) - Wall, D; Allison, W; Alner, G; Ayres, D; Barrett, W; Bode, C; Border, P; Cobb, J; Cotton, R; Courant, H; Chung, J; Demuth, D; et al.