1. Some preliminary considerations in the choice of rated speeds for wind machines;Janardhan,1963
2. Rotor design for horizontal axis wind mills;Jansen,1977
3. A study of hourly wind speeds at Bhopal from the point of view of wind power utilisation;Prakasha Rao,1963
4. Benefit cost methodology study with example application of the use of wind generators;Zimmer;NASA CR-134 864,1975