In:
Contemporary Economics, University of Economics and Human Sciences in Warsaw, Vol. 5, No. 1 ( 2011-08-04), p. 48-
Type of Medium:
Online Resource
ISSN:
1897-9254
DOI:
10.5709/ce.1897-9254.4
Language:
English
Publisher:
University of Economics and Human Sciences in Warsaw
Publication Date:
2011