Erhardt, R. J. (January, 2003). Devil’s dictionary. Mensagenda, 39(4), 20.

Erhardt, R. J. (November 29, 2005). Dinner plan made Christmas run smoothly. Woodbury Review, 25(48), 6.

Erhardt, R. J. (April, 2009). Dumb things people do: The Habitat chronicles. Mensagenda, 45(7), 10-11.

Erhardt, R. J. (July, 2009). Building family memories. Mensagenda, 45(10), 19.

Erhardt, R. P. (December, 1999). Before the cold. Mensagenda, 36(3), 23.

Erhardt, R. P. (June, 2005). After the cold. Mensagenda, 41(9), 11.

Erhardt, RJ. (March, 2006). During the cold. Mensagenda, 42(6), 15.

Erhardt, RJ. (September, 2007). Way before the cold. Mensagenda, 43(12), 19.

Erhardt, RJ. (August, 2008). Windy shadows in the park. Mensagenda, 44(11), 23.

Erhardt, RJ. (September, 2008). Bird music in the park. Mensagenda, 44(12), 7.

Erhardt, RJ. (November, 2008). The New Path. Mensagenda, 45(2), 5.

Erhardt, RJ (December, 2000). Pine trees. Mensagenda, 37(3).

Erhardt, RJ (February, 2001). Valentines. Mensagenda, 37(5).

Erhardt, RJ (April, 2001). Computer quilt. Mensagenda, 37(7).

Erhardt, RJ (October, 2001). African mother and children. Mensagenda, 38(1).

Erhardt, RJ (November, 2002). Minnesota skyview. Mensagenda, 39(2).

Erhardt, RJ (February, 2003). Map for Mensa annual gathering. Mensagenda, 39(5).

Erhardt, RJ (October, 2003). Study of line and texture. Mensagenda, 40(1).

Erhardt, RJ (January, 2004). Moonrise over Pleasantview Park. Mensagenda, 40(4).

Erhardt, RJ (April, 2004). Eggs. Mensagenda, 40(7).

Erhardt, RJ (October, 2005). Leaves. Mensagenda, 42(1).

Erhardt, RJ (November, 2005). Stargazer. Mensagenda, 42(2).

Erhardt, RJ (December, 2005). Christmas stockings. Mensagenda, 42(3).

Erhardt, RJ (July, 2006). Bluebird. Mensagenda, 42(10).

Erhardt, RJ (July, 2008). Mrs. Peter Rabbit, Mensagenda, 44(10).

Erhardt, RJ (February, 2009). Obedience School, Mensagenda, 45(5).

Erhardt, RJ (August, 2009). SkyDuck, Mensagenda, 45(11).

Erhardt, RJ (November, 2009). November Contradiction, Mensagenda, 46(2).