M. Theoretical models of electron and ion density in nighttime D region , 22 : 52668 RADIS AVLJEVIC , K. Laser action in selected compounds ... silicosis , 22 : 51677 RAHMAN , R. Susceptibility of conf used flour bettle to ganna radiation , 22 : 51962 RAHN , Arthur 0 . ... Dependence of declination change of geomagnetic storm sudden commencement on local time and season , 22 : 52672 RAPOPORT ...