I'm looking at the "автореферат" of Rostovtsev (2002),
"Теоретическая криптография" book by Rostovtsev and Makhovenko (2004), and
"автореферат" of Aleksandrova-Makhovenko (2016).
It is clear that sources above are challenging to read, still this might serve as an indicator of progress with isogenies done in Russia.
I'm looking at the "автореферат" of Rostovtsev (2002),
"Теоретическая криптография" book by Rostovtsev and Makhovenko (2004), and
"автореферат" of Aleksandrova-Makhovenko (2016).
It is clear that sources above are challenging to read, still this might serve as an indicator of progress with isogenies done in Russia.