Orthogonality equation with two unknown functions
Crossref DOI link: https://doi.org/10.1007/s00010-015-0359-x
Published Online: 2015-06-21
Published Print: 2016-02
Update policy: https://doi.org/10.1007/springer_crossmark_policy
ChmieliĆski, Jacek
License valid from 2015-06-21