The Stanzas on vibration : the Spandakārikā with four commentaries : the spandasamdoha by Ksemarāja, the Spandavrtti by Kallaṭabhaṭṭa, the Spandavivṛti by Rājānaka Rāma, the Spandapradīpikā by Bhagavadutpala - Vasugupta (SUNY series in Shaiva traditions of Kashmir., 1992)