On regular homeomorphisms in the plane

Ruslan Salimov
2010 Annales Academiae Scientiarum Fennicae: Mathematica  
A regular homeomorphism of the Sobolev class W 1,1
doi:10.5186/aasfm.2010.3517 fatcat:hdkh4zq2ingizbywqpn4z6v63a