Knack, Stephen and Kropf, Martha (1998): For shame! The effect of community cooperative context on the probability of voting. Published in: Political Psychology , Vol. 19, No. 3 (September 1998): pp. 585-600.
Knack, Stephen and Kropf, Martha (2003): Roll-off at the top of the ballot: intentional undervoting in American presidential elections. Published in: Politics and Policy , Vol. 31, No. 4 (December 2003): pp. 575-594.
Knack, Stephen and Kropf, Martha (2003): Viewers like you: community norms and contributions to public broadcasting. Published in: Political Researcg Quarterly , Vol. 56, No. 2 (June 2003): pp. 187-197.
Knack, Stephen and Kropf, Martha (2003): Voided Ballot in the 1996 Presidential Election: A County-Level Analysis. Published in: Journal of Politics , Vol. 65, No. 3 (August 2003): pp. 881-897.
Knack, Stephen and Kropf, Martha (2002): Who Uses Inferior Voting Technology? Published in: PS: Political Science and Politics , Vol. 35, No. 3 (September 2002): pp. 541-548.
