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A. S. Conrad, ``The Flexagon,'' RIAS Technical Report 60-24, 1960.

Joan Crampin, ``Note 2672,'' Mathematical Gazette, February, 1957, 55.

Martin Gardner, ``Flexagons,'' Scientific American, December, 1956, 162-166.

Scientific American, ``Letters,'' March, 1957, 8-9.

Martin Gardner, ``About tetraflexagons and tetraflexigation,'' Scientific American, May, 1958, 122-6.

Margaret Joseph, ``Hexahexaflexagrams,'' Mathematics Teacher, Vol. 44 (1951) 247.

F. G. Maunsell, ``The Flexagon and the Hexahexaflexagram.'' (Note 2449), Mathematical Gazette, Vol. 38 (1954) 213-214.

Harold V. McIntosh, ``Flexagons,'' Unpublished paper.

C. 0. Oakley and R. J. Wisner, ``Flexagons,'' American Mathematical Monthly, Vol. 64 (1957) l43-154.

Alan Phillips, ``Hexaflexagons,'' Mimeographed.

W. R. Ransom, ``A Six-Sided Hexagon,'' Vol. 52 (1952) 94.

R. E. Rogers et. al., ``Changeable Amusement Devices and the Like,'' U. S. Patent No. 2,883,195.

N. F. Rutherford, ``Toy,'' U. S. Patent No. 2,245,875.

Mike Schlessinger, ``Tuckerman Tree Theory,'' Unpublished paper.

R. F. Wheeler, ``The Flexagon Family,'' Mathematical Gazette, Vol.42 (Feb., 1958) 1-6.


W. W. Rouse Ball, Mathematical Recreations and Essays, rev. by H. Coxeter Macmillan, 1960.

A. H. Shemet, ``Changeable Display Amusement Device,'' U. S. Patent No. 2,688,820.

B. M. Stalker, ``Advertising Medium or Toy,'' U. S. Patent No. 1,997,022.

Pedro 2001-08-22