1 Correction to: BIT Numerical Mathematics https://doi.org/10.1007/s10543-021-00905-9

Dear Readers,

Unfortunately, the original article was published without ORCID NUMBERs.

This has since been corrected.

Matthias Ehrhardt 0000-0003-2561-8854

Michael Günther 0000-0002-2195-4300

Renate Winkler 0000-0003-2698-3060

We apologize for this error.

“The original article has been corrected.”