id: 50377473 dt: j an: 50377473 au: Rainal, Attilio J. ti: Passage times of Gaussian noise crossing a time-varying boundary so: IEEE Transactions on Information Theory 36, No. 5, 1179-1183 (1990). py: 1990 pu: la: EN cc: ut: ci: li: doi:10.1109/18.57224