* [http://www.math.uic.edu/~kauffman/ Louis H. Kauffman] — ''[http://www.math.uic.edu/~kauffman/Arithmetic.htm Box Algebra, Boundary Mathematics, Logic, and Laws of Form]'' | * [http://www.math.uic.edu/~kauffman/ Louis H. Kauffman] — ''[http://www.math.uic.edu/~kauffman/Arithmetic.htm Box Algebra, Boundary Mathematics, Logic, and Laws of Form]'' |