@misc{Frydrych_Mariusz_A_2000,
 author={Frydrych, Mariusz and Kalina, Jerzy},
 volume={48},
 editor={Polska Akademia Nauk.},
 number={2},
 copyright={Rights Reserved - Restricted Access},
 address={Warsaw},
 address={Warsaw},
 howpublished={online},
 year={2000},
 publisher={Polska Akademia Nauk. Centrum Upowszechniania Nauki.},
 language={eng},
 title={A variational formula for the norm of the Ahlfors operator},
 type={Text},
}