1. Residuation Theory;Blyth,1972
2. Stochastic metrics;Brown;Z. Wahrsch. Verw. Gebiete,1972
3. On the duality of generalized infimal and supremal convolutions;Frank;Rend. Mat.,1979
4. An order theoretic model for cluster analysis;Janowitz;SIAM J. Appl. Math.,1978
5. Semiflat L-cluster methods;Janowitz;Discrete Math.,1978