1. Wake interaction in an array of windmills—theory and preliminary results;Faxen,1978
2. Wind tunnel investigation of a 14 foot vertical axis windmill;Muraca;NASA Report TM-X-72663,1976
3. Wake structure of a Darrieus rotor;Boschloo,1977
4. A wind tunnel study of the wake of a horizontal axis wind turbine;Vermeulen;T.N.O. report 78-09674,1978
5. The interaction of windmill wakes;Builtjes,1978