Teaching developmentally disabled children : the ME book / by O. Ivar Lovaas, ...,
cop. 1981
The American psychologist, ISSN 0003-066X, (2011)vol. 66,7
Information trouvée : "O. Ivar Lovaas was born on May 8, 1927.8 mai 1927-2 aout 2010" ; "Lovaas passed away
on August 2, 2010, at 83 years of age, in Lancaster, California"