@misc{the+influence+of+polypropylene+fibres+on+the+properties+of+fresh+and+hardened+concrete, author = {Chajec, Adrian i Krzywiński, Kamil i Ostrowski, Krzysztof i Sadowski, Łukasz}, title = {The influence of polypropylene fibres on the properties of fresh and hardened concrete}, journal = {Technical Transactions }, address = {Kraków}, publisher = {<a href=\"http://www.wydawnictwo.pk.edu.pl/\" target=\"_blank\">Wydawnictwo PK</a>}, date = {2019}, number = {Vol. 116, iss. 5}, ISSN = {0011-4561} }