author = {C. Schneider},
title = {{Multi-Summation in Refined Difference Fields}},
language = {english},
year = {2012},
month = {November 8},
note = {Invited colloquium talk at Microsoft Research - Inria Joint Centre, Campus de l'Ecole polytechnique, France},
institution = {Microsoft Research - Inria Joint Centre, Campus de l'Ecole polytechnique, France}