Progress of Theoretical PhysicsSome Remarks on the Non-infinitesimal Commutation RelationsEizo KanaiPublished Oct 1, 1947• 0 citationsPublisherAbstractEizo Kanai; Some Remarks on the Non-infinitesimal Commutation Relations*, Progress of Theoretical Physics, Volume 2, Issue 3, 1 October 1947, Pages 135–144, httDOI10.1143/ptp/2.3.135