@misc{the+concept+of+ecological+city, author = {Węcławowicz-Bilska, Elżbieta}, title = {The concept of ecological city}, journal = {Technical Transactions}, address = {Kraków}, publisher = {<a href=\"http://www.wydawnictwo.pk.edu.pl/\" target=\"_blank\">Wydawnictwo PK</a>}, date = {2015}, number = {Y. 112, iss. 12-A} }