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- [5] SPEED AND POWER-FACTORS OF INTELLIGENCE - FURTHER EVIDENCE OCCUPATIONAL PSYCHOLOGY, 1960, 34 (03): : 184 - 194
- [6] Measurement of relative and true power factors of air capacitors JOURNAL OF RESEARCH OF THE NATIONAL BUREAU OF STANDARDS, 1938, 21 (04): : 425 - 456
- [7] SPEED AND POWER-FACTORS OF INTELLIGENCE - FURTHER EVIDENCE - REPLY OCCUPATIONAL PSYCHOLOGY, 1960, 34 (03): : 195 - 201
- [8] POWER-FACTORS AND ELECTRICAL DEMANDS OF CENTER-PIVOT IRRIGATION MACHINES TRANSACTIONS OF THE ASAE, 1975, 18 (04): : 673 - 676
- [9] PERFORMANCE OF DUAL-EXCITATION SYNCHRONOUS GENERATOR AT LEADING POWER-FACTORS PROCEEDINGS OF THE INSTITUTION OF ELECTRICAL ENGINEERS-LONDON, 1975, 122 (08): : 813 - 818