- www.artmuseums.harvard.edu/mondrian
- The MONDRIMAT is a simple system which lets you experiment with space, color and visual rhythm in accordance with the theories of Piet Mondrian.www.stephen.com/mondrimat
- www.desires.com/2.1/Toys/Mondrian/mond-fr.html
- www.artchive.com/artchive/ftptoc/mondrian_ext.html