@article{11541, note = {See French version in LA PROPRIETE INDUSTRIELLE 1985, Vol 101, No 9, p 311-313.}, author = {Sirakov, P., and Iliev, K.}, url = {http://tind.wipo.int/record/11541}, title = {Young people's scientific and technical inventive activity in Bulgaria /}, recid = {11541}, pages = {1 volume ([2] pages) ;}, }