Journal of Contemporary Physics (Armenian Academy of Sciences)
Journal of Contemporary Physics (Armenian Academy of Sciences) > 2009 > 44 > 2 > 99-103
Journal of Contemporary Physics (Armenian Academy of Sciences) > 2009 > 44 > 3 > 120-127
Journal of Contemporary Physics (Armenian Academy of Sciences) > 2009 > 44 > 3 > 113-119
Journal of Contemporary Physics (Armenian Academy of Sciences) > 2009 > 44 > 3 > 131-135