Rudolf A. Yanson 1990
A large array of classical or old literary forms of languages have a timespan
such that they are not intelligible to their more modern variants which have
E16/E17/E18/E19 entries. One of them is Old Burmese
( Rudolf A. Yanson 2002 , Luce, Gordon H. 1985 ,
Rudolf A. Yanson 1990 ).