• * at the end of a keyword allows wildcard searches
  • " quotes can be used for searching phrases
  • + represents an AND search (default)
  • | represents an OR search
  • - represents a NOT operation
  • ( and ) implies priority
  • ~N after a word specifies the desired edit distance (fuzziness)
  • ~N after a phrase specifies the desired slop amount
  • 1 (current)
Found 2 result(s)
Country
The DRKS is an open access online register for clinical trials conducted in Germany, which allows all users to search, register and share information on clinical trials.
Country
Zvdd aims to record all digital surrogates of printed works, which are available from the internet and meet certain quality criteria. This comprised all types of printed works, such as newspapers, journals, printed music, flying leaves as well as monographs or serials.