A. Caragliu, C. Del Bo, K. Kourtit, and P. Nijkamp. The Annals of Regional Science, 56 (3):
617-645(2016)First published online: December 28, 2015, http://dx.doi.org/10.1007/s00168-015-0734-5. (EVS).
D. Siroky, and C. Mahmudlu. Problems of Post-Communism, 63 (2):
94-107(2016)First published online: December 21, 2015, http://dx.doi.org/10.1080/10758216.2015.1082124. (ISSP).