@incollection{JEDP_1999____A19_0, author = {Enrique Zuazua}, title = {Some uniqueness and observability problems arising in the control of vibrations}, booktitle = {}, series = {Journ\'ees \'equations aux d\'eriv\'ees partielles}, eid = {19}, pages = {1--8}, publisher = {Universit\'e de Nantes}, year = {1999}, language = {en}, url = {https://proceedings.centre-mersenne.org/item/JEDP_1999____A19_0/} }