Transactions on Rough Sets, Volume 10, 2009

• Marcin Wolski:
  Rough Set Theory: Ontological Systems, Entailment Relations and Approximation Operators. 1-14
  
• Daniela Bianucci, Gianpiero Cattaneo:
  Information Entropy and Granulation Co-Entropy of Partitions and Coverings: A Summary. 15-66
  
• Gianpiero Cattaneo, Davide Ciucci:
  Lattices with Interior and Closure Operators and Abstract Approximation Spaces. 67-116
  
• Anna Gomolinska:
  Rough Approximation Based on Weak q-RIFs. 117-135
  
• Xiaodong Yue, Duoqian Miao:
  Rough Geometry and Its Applications in Character Recognition. 136-156
  
• Krzysztof Pancerz:
  Extensions of Information Systems: The Rough Set Perspective. 157-168
  
• Agnieszka Maciocha, Jerzy Kisielnicki:
  Intangible Assets in a Polish Telecommunication Sector - Rough Sets Approach. 169-196
  
• Izabela Szczech:
  Multicriteria Attractiveness Evaluation of Decision and Association Rules. 197-274