X-puzzel #7
Crossref DOI link: https://doi.org/10.1007/s12496-017-0113-8
Published Online: 2017-09-22
Published Print: 2017-09
Update policy: https://doi.org/10.1007/springer_crossmark_policy
San Giorgi, Frédérique
Hoogeveen, Reinier
License valid from 2017-09-01