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ƒOƒ‰ƒgƒ“z (ŽÊ^), ƒOƒ‰ƒgƒiƒCƒg

Gratonite

”­Œ©”N: 1939”N (ƒyƒ‹[, ExcelsiorzŽR), 1984”N (“ú–{)

ŽY’nƒŠƒXƒg: ƒOƒ‰ƒgƒ“z‚ÌŽY’n (1ƒ–Š)

ŒêŒ¹: ƒAƒƒŠƒJ‚ÌHarvard‘å‚Ìz°ŠwŽÒ‚ÌLouis Caryl Graton‹³Žö (1880-1970)