Solodkii, S.G. (1997) “On information complexity of certain classes of operator equations”,
Ukrains’kyi Matematychnyi Zhurnal
, 49(9), pp. 1271–1277. Available at:
https://umj.imath.kiev.ua/index.php/umj/article/view/5126
(Accessed: 10 April 2025).