Dumanyan, V. 2013. ON BOUNDEDNESS OF A CLASS OF FIRST ORDER LINEAR DIFFERENTIAL OPERATORS IN THE SPACE OF $(n-1)$-DIMENSIONALLY CONTINUOUS FUNCTIONS. Proceedings of the YSU A: Physical and Mathematical Sciences. 47, 2 (231) (Jun. 2013), 8–14. DOI:https://doi.org/10.46991/PYSU:A/2013.47.2.008.