000			003330000a22001330004500
245			_aRotors design for horizontal axis windmills
100			_aJansen, W.A.M.
100			_aSmulders, P.T.
260			_aNetherlands _bSteering Committee _c1977
300			_a52p. : ill.
080			_a621.548 _bJ3
041			_aEN
942			_cBK
999			_c109679 _d109679