International Journal of Theoretical Physics
International Journal of Theoretical Physics > 2019 > 58 > 12 > 4278-4292
International Journal of Theoretical Physics > 2019 > 58 > 12 > 4258-4277
International Journal of Theoretical Physics > 2019 > 58 > 12 > 4278-4292
International Journal of Theoretical Physics > 2019 > 58 > 12 > 4258-4277