Mentioned in a PhD by Prithvi Ramanan Varatharajan
https://espace.library.uq.edu.au/data/UQ_675008/s4283695_final_thesis.pdf?Expires=1607726089&Key-Pair-Id=APKAJKNBJ4MJBJNC6NLQ&Signature=deMe~b1P7haZ~y6MGFF4K8L4bdvNkR5v4tpB0LIgSauCXoc~lgHdP4JEIX33pvLsT3ei3NC49lU~oUR-6dIsYKRgHY3iWxdeeVjPZ71eQqYeu4RvdMrI982cwXbOOPhwGXer-W8FDvCvpP2jU3eNwhcYm08zhNAFKbk8nzkHW-qfhrKdhTyrXdHqUvUfc1UKmusPl4bmxrENBwGREsEZ1bN~p9xRwsnnqWrxI9mUVvhmyW1LxoXxA2b4vWtwt6UzAr2iOt5L63SKpnJkp2yeJ1lNm6~KZH6Ge3wKONmgcRKbxMJIk-qcKXM38BUCFZZkbQbKuLn~63reXbB0cILMmQ__
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