Here you will find
SciELO Citation Index 1
SciFinder n 1
Scopus 1
Semantic Scholar : a free, AI-powered research tool for scientific literature 1
Sherpa/RoMEO : publisher copyright policies & self-archiving 1
Sicherheitsdatenblätter für Druckgase - Air Liquide 1
Sicherheitsdatenblätter Sigma - Aldrich 1
Social Sciences Citation Index 1
Spectral Database for Organic Compounds (SDBS) 1
SPIE Digital Library 1
Springer Materials : from the Landolt-Börnstein New Series, the Linus Pauling Files and other integrated resources 1
Springer Nature Experiments 1
Statista - das Statistik-Portal 1
Stipendiendatenbank des Deutschen Akademischen Auslandsdienstes (DAAD) 1
Structural Classification of Proteins 1