| Your search for Konstantin-Kyrill provides 138 hits |
| 51 | Bergmann, A. - in: Die Sprache (2004) 148-172 |
| 52 | Winnipeg, The University of Manitoba Press, 1964, 28 p. |
| 53 | Hansack, E. - in: Die Welt der Slaven (1986) 336-414 |
| 54 | Pavlovskaja, O.E.; Ponomarenko, I.I.; Troševa, T.P. (red.) - Krasnodar, KubGAU, 2010, 168 p. |
| 55 | Mečev, K. - Sofija, Narodna Prosveta, 1969, 247 p. |
| 56 | Stanislav, J. (trans.) - Bratislava, Praha, 1934, 87, IX p. |
| 57 | Ginzel, J.A. - Wien, Braumüller, 1861, 132 p. |
| 58 | Grivec, F. - Ljubljana, DZS, 1951, 178 p. |
| 59 | Miklas, H. - in: Paleobulgarica (1988) 52-65 |
| 60 | Ohrid, 1966 |