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Lake Ohrid, 9 - 13 June 1984.
Twelfth national conference on education in physics entitled "Scientific and technological progress in learning physics" was held in Kardzhali in 1984 [1].
References
Н. Балабанов, Да оркестрираме мелодиите на физиката, Изд. Пловдивски университет, с. 99
Created: 07 11 2007
Updated: 24 09 2013