TY - JOUR AU - Ashok J Gadgil AU - Bhaskar Natarajan BT - Journal of the Solar Energy Society of India IS - 1 LA - eng PY - 1989 SP - 39 EP - 45 ST - SESI-J T2 - Journal of the Solar Energy Society of India TI - Retrofit Measures for Solar Heating of a Mini-Hydropower Station at Altitude of 3500 m VL - 3 ER -