@ARTICLE{Tyrowicz_Joanna_Age_2011,
 author={Tyrowicz, Joanna and Nestorowicz, Joanna},
 number={No 3},
 journal={Ekonomista},
 howpublished={online},
 year={2011},
 publisher={Polskie Towarzystwo Ekonomiczne},
 publisher={Instytut Nauk Ekonomicznych Polskiej Akademii Nauk},
 title={Age and Entrepreneurship During Transition},
}