1. Change of velocities in a continuous ergodic flow;Ambrose, Warren;Duke Math. J.,1941
2. Representation of ergodic flows;Ambrose, Warren;Ann. of Math. (2),1941
3. Structure and continuity of measurable flows;Ambrose, Warren;Duke Math. J.,1942
4. The decomposition of measures. II;Ambrose, Warren;Duke Math. J.,1942
5. Sur le changement du temps dans les systèmes dynamiques possédant une mesure invariante;Bebutoff, M.;C. R. (Doklady) Acad. Sci. URSS (N. S.),1939