Paul Selver,
Anthology of Modern Slavonic Literature in Prose and Verse
(1919)
“ The difficulties of classification are almost as great when we come to consider the Slav languages. In 1822, Dobrovský, the practical founder of Slav philology, divided them into 9 different tongues; Šafařík in 1842 proposed 6 languages with 13 dialects; Schleicher in 1865 proposed 8; Miklosich, a prominent Slovene scholar, decided on 9; Jagić, a Croat authority of European reputation, is in favour of 8. The reason for this diversity is that some philologists designate as a language what others will admit only as a dialect. ”
