Until 30 November 2016, The Royal Society provided a trial access for their full collection of journals.
The database can be used without registration from ELTE IP adress.
The Royal Society is one of the oldest scientific society and was founded 356 years ago, they provide current journals in subject like biology, chemistry, mathematics, physics, engineering science and history of science.
The collection can be found here: https://royalsociety.org/journals/