@incollection{JEDP_1998____A1_0, author = {Beals, Richard}, title = {Solutions fondamentales exactes}, booktitle = {}, series = {Journ\'ees \'equations aux d\'eriv\'ees partielles}, eid = {1}, pages = {1--9}, publisher = {Universit\'e de Nantes}, year = {1998}, zbl = {01808711}, language = {fr}, url = {http://www.numdam.org/item/JEDP_1998____A1_0/} }