au.\*:("RICHARDS ER")
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THE USE OF SOLAR CELLS IN THE LIGHTHOUSE SERVICE.RICHARDS ER.1977; BULL. A.I.S.M.; FR.; DA. 1977; NO 72; PP. 25-31; ABS. ANGL.Article
SOLAR CELLS IN THE TRINITY HOUSE LIGHTHOUSE SERVICE.RICHARDS ER.1975; IN: POWER SOURCES 5. RES. DEV. NON-MECH. ELECTR. POWER SOURCES. INT. SYMP. 9. PROC.; BRIGHTON; 1974; LONDON; ACAD. PRESS; DA. 1975; PP. 617-635Conference Paper
