International Journal of Theoretical Physics
International Journal of Theoretical Physics > 2019 > 58 > 3 > 1008-1016
International Journal of Theoretical Physics > 2019 > 58 > 10 > 3323-3332
International Journal of Theoretical Physics > 2019 > 58 > 3 > 1008-1016
International Journal of Theoretical Physics > 2019 > 58 > 10 > 3323-3332