Question: Which singer who co-authored the first comprehensive reference CD-ROM on Carnatic music is also a notable Asthana Vidushi?
Sentence (from "Asthana Vidushi"): Notable Asthana Vidushis include Bangalore Nagarathnamma, M. S. Sheela, Bombay Sisters, Geetha Raja, as well as Srirangam Gopalaratnam, Shobha Raju, and S. Sowmya.
Relevant evidence: Yes