NLTK: The Natural Language Toolkit - Paper
Steven Bird
Torus Actions and Their Applications in Topology and Combinatorics
V. M. Buchstaber & Taras E. Panov
Gale Contextual Encyclopedia of American Literature
Anne Marie Hacht & Dwayne D. Hayes
Modularity in Knowledge Representation and Natural-Language ...
Jay L. Garfield
A Smarter Way to Learn Python: Learn It Faster. Remember It ...
Mark Myers
Principles of Knowledge Representation and Reasoning: Proceedings ...
Jon Doyle & Erik Sandewall & Pietro Torasso
Representations of Commonsense Knowledge
Ernest Davis