R. Jennings, Y. Chen, J. Sahasrabudhe:
"On a new Idiom in the study of Entailment";
Logica Universalis, 5 (2011), 1; 101 - 113.
http://dx.doi.org/10.1007/s11787-011-0027-4Electronic version of the publication:
http://publik.tuwien.ac.at/files/PubDat_200962.pdf