(1)
Werner, K. The Yogasutras of PataƱjali on Concentration of Mind. Fernando Tola and Carmen Dragonetti. Translated from the Revised Spanish Original by K. D. Prithpaul. BSRV 1989, 6 (1), 93-97. https://doi.org/10.1558/bsrv.v6i1.15906.