@misc{Uehara_Shigenori_Spaces_2003, author={Uehara, Shigenori}, volume={51}, number={3}, editor={Polska Akademia Nauk.}, copyright={Rights Reserved - Restricted Access}, address={Warsaw}, howpublished={online}, year={2003}, publisher={Polska Akademia Nauk. Centrum Upowszechniania Nauki.}, language={eng}, type={Text}, title={Spaces of upper semi-continuous multi-valued functions which are absolute retracts}, }