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- [23] OPTIMAL CONDITIONS FOR USE OF SOLAR-ENERGY FOR HEATING OF BUILDING REVUE DE PHYSIQUE APPLIQUEE, 1980, 15 (03): : 553 - 557
- [24] GREENHOUSE HEATING WITH SOLAR-ENERGY - EXPERIMENTAL PLANT AT HANNOVER GARTENBAUWISSENSCHAFT, 1981, 46 (04): : 187 - 192
- [25] SOLAR-ENERGY - ESTIMATING PERFORMANCE - SOLAR WATER HEATING-SYSTEMS ARCHITECTS JOURNAL, 1977, 166 (29): : 135 - 137
- [26] ENERGY FACTS .15. HEATING YOUR HOME WITH SOLAR-ENERGY MICHIGAN COOPERATIVE EXTENSION SERVICE EXTENSION BULLETIN, 1978, (NE-11): : 1 - 4
- [27] WATER HEATING SYSTEM USING SOLAR-ENERGY WITH ELECTRICITY AS AUXILIARY ENERGY ACTA CIENTIFICA VENEZOLANA, 1977, 28 : 104 - 104
- [30] SOLAR-ENERGY HEATING OF DAIRY-MANURE ANAEROBIC DIGESTERS AGRICULTURAL WASTES, 1980, 2 (02): : 103 - 118