A Keystroke Level Analysis of Manual Map Digitizing. - Peter Haunold; Werner Kuhn (COSIT, 1993)

A keystroke level analysis of a graphics application: manual map digitizing. - Peter Haunold; Werner Kuhn (CHI Conference Companion, 1994)

Linear Constraints: Geometric Objects Represented by Inequalities. - Peter Haunold; Stéphane Grumbach; Gabriel M. Kuper; Zoé Lacroix (COSIT, 1997)