1911 Encyclopædia Britannica, Volume 7… (1911)
“ He was already known as a talented musical amateur when in 1833 he met Glinka and was encouraged to devote himself to composition. His light opera Esmeralda was written in 1839, and his Roussalka was performed in 1856, but he had but small success or recognition either at home or abroad, except in Belgium, till the ’sixties, when he became one of Balakirev’s circle. ”
