Extended streamflow prediction during the California drought, Twedt, T. M., Burnash R. J. C., and Ferral R. L. , 46th Annual Western Snow Conference, April 1978, Otter Rock, Oregon, (1978)

National weather service extended streamflow prediction, Twedt, T. M., Schaake Jr. J. C., and Peck E. L. , 45th Annual Western Snow Conference, April 1977, Albuquerque, New Mexico, (1977)