Authors:  Apostolos Beligiannis and Nikolaos Marmaridis. 
Addresses: Department of Mathematics,          
University of the Aegean,         
82300 Karlovassi, Samos,         
Greece. 
and          
Department of Mathematics,          
University of Ioannina,         
45110 Ioannina, Greece. 
Article: "Grothendieck Groups Arizing from          
Contravariantly Finite Subcategories"
Status: Communications in Algebra 24, 1996, 4415-4438.