. . "Rayonnement cosmique." . . . . . "Primary cosmic radiation : Transl. from Russian" . "Pervičnoe kosmičeskoe izlučenie <engl.>" . . . "Primary cosmic radiation = Pervicnoe kosmiceskoe izlucenie" . . . . . "Pervichnoe kosmicheskoe izluchenie" . "Primary cosmic radiation" . . .