Swap operator for one-dimensional granular system

S Viridi, S N Khotimah, P M Widartiningsih, "Pemodelan Gaya Casimir dalam Sistem Satu-Dimensi Granular Gravitasi-Diri dengan Operator Tukar", SNIPS 2017, Indonesia, Bandung, 26-27 July 2017, COM|ABS-123.