@misc{the+discrete+vortex+method+for+estimating+how+surface+roughness+affects+aerodynamic+drag+acting+on+a+long+cylinder+exposed+to+wind, author = {Nowicki, Tomasz}, title = {The Discrete Vortex Method for estimating how surface roughness affects aerodynamic drag acting on a long cylinder exposed to wind}, 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. 2-B} }