Nisaisue, C. “Fluxoid Quantum 𝒉𝒄/𝟐𝒆 Protected in an S-Wave Superconducting Ring”. Burapha Science Journal, vol. 29, no. 1 January-April, Apr. 2024, pp. 327-36, https://li05.tci-thaijo.org/index.php/buuscij/article/view/237.