1994 1994-05-p11994-05-p61994-05-p151994-06-p81994-09-p141994-09-p71994-09-p161994-11-p101994-02-p31994-03-p11994-05-p41994-05-p51994-05-p61994-05-p141994-06-p21994-06-p91994-09-p11994-09-p151994-09-p171994-09-p221994-09-p231994-10-p11994-10-p31994-10-p111994-10-p121994-10-p131994-10-p141994-10-p171994-10-p211994-11-p111994-dec-p21