Publications labeled as "free access," "open access," or "subscribed access" can be read or downloaded from the websites.
All other publications (journal articles, book chapters, etc.) can be ordered from the library.
The most "elegant" way is via the MPG/SFX service. For this, only click the MPG/SFX button in Web of Science, Scopus resp. the Get-Access button on the websites of the publications themselves. Or use the Citation Linker.
We also gladly accept an informal e-mail to firstname.lastname@example.org with the metadata (title, author(s), year, volume, page number(s)).