3 citations to https://www.mathnet.ru/rus/im226

1. Pink R., Rütsche E., “Adelic openness for Drinfeld modules in generic characteristic”, J. Number Theory, 129:4 (2009), 882–907            
2. Michiel Hazewinkel, Handbook of Algebra, 6, Handbook of Algebra - Volume 6, 2009, 319  
3. Gardeyn F., “Openness of the Galois image for $\tau$-modules of dimension 1”, J. Number Theory, 102:2 (2003), 306–338