. . . . "The Double-Polarization method for estimation of sucrose and the evaluation of the Clerget divisor, by Richard F. Jackson,... and Clara L. Gillis" . . "Clerget method for sucrose"@en . "The double-polarization method for estimation of sucrose and the evaluation of the Clerget divisor"@en . "The double-polarization method for estimation of sucrose and the evaluation of the Clerget divisor" . . . . . "The Double-Polarization Method for estimation of sucrose and the evaluation of the clerget divisor" . . . . . .