APA

Tickle I. J., Laskowski R. A. & Moss D. S. (20000605). Rfree and the rfree ratio. II. Calculation Of the expected values and variances of cross-validation statistics in macromolecular least-squares refinement. : Acta crystallographica. Section D, Biological crystallography.

Chicago

Tickle I J, Laskowski R A and Moss D S. 20000605. Rfree and the rfree ratio. II. Calculation Of the expected values and variances of cross-validation statistics in macromolecular least-squares refinement. : Acta crystallographica. Section D, Biological crystallography.

Harvard

Tickle I. J., Laskowski R. A. and Moss D. S. (20000605). Rfree and the rfree ratio. II. Calculation Of the expected values and variances of cross-validation statistics in macromolecular least-squares refinement. : Acta crystallographica. Section D, Biological crystallography.

MLA

Tickle I J, Laskowski R A and Moss D S. Rfree and the rfree ratio. II. Calculation Of the expected values and variances of cross-validation statistics in macromolecular least-squares refinement. : Acta crystallographica. Section D, Biological crystallography. 20000605.