346072 Jansen, W. A. M., & Smulders, P. T. (1981). Rotor design for horizontal axis windmills. Amersfoort, The Netherlands : Steering Committee for Wind Energy in Developing Countries.
Chicago-čujuhus (17. p.)346072 Jansen, W. A. M., juo P. T. Smulders. Rotor Design for Horizontal Axis Windmills. Amersfoort, The Netherlands : Steering Committee for Wind Energy in Developing Countries, 1981.
MLA-čujuhus (9. p.)346072 Jansen, W. A. M., juo P. T. Smulders. Rotor Design for Horizontal Axis Windmills. Amersfoort, The Netherlands : Steering Committee for Wind Energy in Developing Countries, 1981.
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