Movable stationery

Vol. 10, N. 1, Movable Book Society, New Brunswick, febbraio 2002.

Movable stationery

Vol. 10, N. 4, Movable Book Society, New Brunswick, novembre 2002.

Movable stationery

Vol. 10, N. 2, Movable Book Society, New Brunswick, maggio 2002.

Movable stationery

Vol. 10, N. 3, Movable Book Society, New Brunswick, agosto 2002.

Alfred S. Posamentier

Math Wonders To Inspire Teachers And Students

ASCD, Alexandria 2003.

Movable stationery

Vol. 11, N. 4, Movable Book Society, New Brunswick, novembre 2003.

Movable stationery

Vol. 11, N. 3, Movable Book Society, New Brunswick, agosto 2003.

Movable stationery

Vol. 11, N. 1, Movable Book Society, New Brunswick, febbraio 2003.

Movable stationery

Vol. 11, N. 2, Movable Book Society, New Brunswick, maggio 2003.

Albrecht Heeffer

Récréations Mathématiques (1624). A Study on its Authorship, Sources and Influence

Ghent University, Ghent 2004.