1. Andreakos K., 1978. Climatic elements of 86 meteorological stations of the Hellenic network. Period 1930–1975. Studies of the Hellenic National Meteorological Service, Athens, Greece (in Greek).
2. Balafoutis Ch., 1977. Contribution to the Study of Climate in Macedonia and Thrace. Ph.D. Thesis, University of Thessaloniki, Thessaloniki, Greece (in Greek).
3. Basist A., Bell G. and Meentmeyer V., 1994. Statistical relationships between topography and precipitation patterns. J. Clim., 7, 1305–1315.
4. Beek E.G., Stein A. and Janssen L.L.F., 1992. Spatial variability and interpolation of daily precipitation amount. Stochastic Hydrology and Hydraulics, 6, 209–221.
5. Boltsis C., 1986. Contribution in the Study of Precipitation Equivalent of Water in the Region of Ipiros. Ph.D. Thesis, Kapodistrian University of Athens, Athens, Greece (in Greek).