The Journal of Mathematical Behavior
Journal of Mathematical Behavior > 2001 > 20 > 1 > 43-53
Journal of Mathematical Behavior > 2001 > 20 > 1 > 33-42
Journal of Mathematical Behavior > 2001 > 20 > 1 > 55-87
Journal of Mathematical Behavior > 2001 > 20 > 1 > 109-144
Journal of Mathematical Behavior > 2001 > 20 > 1 > 89-107
Journal of Mathematical Behavior > 2001 > 20 > 1 > 21-31