A Quick Flexagon Survey [PDF]

Harold V. McIntosh

Octagonal Flexagons [PDF]

Harold V. McIntosh

Heptagonal Flexagons [PDF]

Harold V. McIntosh

Hexagon Flexagons [PDF]

Harold V. McIntosh

Pentagonal Flexagons [PDF]

Harold V. McIntosh

Tetragonal Flexagons [PDF]

Harold V. McIntosh

Trigonal Flexagons [PDF]

Harold V. McIntosh

REC-F for Flexagons [PDF]

Source code (Objective-C, NeXTStep) [TAR.GZ]

Binary code (NeXTStep, OpenStep, Intel processor) [TAR.GZ]

Harold V. McIntosh

My flexagon experiences [PDF]

Harold V. McIntosh

Flexagon [PDF]

by Antony S.  Conrad and Daniel K. Hartline

The theory of the flexagon [PDF]

by Antony S.  Conrad