www.math.unl.edu/~kkattche
www.commalg.org/
www.ams.org/
www.maa.org/
www.uwplatt.edu/nextwi/
dict.leo.org/
http://www.di.fm/
www.flaresound.com/
www.nytimes.com/
news.bbc.co.uk/
www.gulfnews.com/
www.fr-aktuell.de/
www.lacrossetribune.com/
www.startribune.com/
www.chicagotribune.com/
www.colleyrankings.com/
www.lacrosseloggers.com/
mlb.mlb.com/

RESEARCH:

• Monoids and direct-sum decompositions over local rings
  J. Algebra 256 (2002) 51-65
• Elasticities of Krull domains with finite divisor class group
  Linear Alg. Appl. 34 (2004) 171-185
• On factorization in Krull domains with divisor class group $Z_{2^k}$
  Arithmetical Properties of Commutative Rings and Monoids
  Lecture Notes in Pure and Applied Mathematics 241 (2005) 325-336
• Sets of elasticities
  (in preparation)