International Journal of Theoretical Physics
International Journal of Theoretical Physics > 2019 > 58 > 2 > 531-542
International Journal of Theoretical Physics > 2019 > 58 > 9 > 2810-2822
International Journal of Theoretical Physics > 2019 > 58 > 2 > 531-542
International Journal of Theoretical Physics > 2019 > 58 > 9 > 2810-2822