1. Asai, T. (1964) : Photographic observation of clouds by aircraft during snowfall period in Hokuriku District. J. Met. Soc. Japan, 42, 186-196.
2. Asai, T. (1966): Cloud bands over the Japan Sea off the Hokuriku District during a cold air outburst. Pap. Met. Geophys., 16, 179-194.
3. Fukuda, K. (1965): Synoptic study on the mech- anism of heavy snowfall. Geophys. Mag., 32, 317-359.
4. Kurosaka,. H. (1983): Synoptic climatological study on the conditions for formation of the cloud bands around Japan in winter as revealed by satellite photographs. Climatological Notes, 32, 1-66.
5. Matsumoto, S. and Ninomiya, K. (1966a): Some aspects of the cloud formation and its relation to the heat and moisture supply from the Japan Sea surface under a weak winter monsoon situation. J. Met. Soc. Japan, 44, 60-75.