@article{DBLP:journals/entcs/Pfenning02a,
author = {Frank Pfenning},
title = {Invited talk: Tri-Directional Type Checking},
journal = {Electr. Notes Theor. Comput. Sci.},
volume = {70},
number = {1},
year = {2002},
ee = {http://www1.elsevier.com/gej-ng/31/29/23/125/51/show/Products/notes/index.htt\#012},
bibsource = {DBLP, http://dblp.uni-trier.de}
}