CRCnetBASE offers instant access to the world's premier scientific, technical and medical references with added support for libraries.
A review paper can be really helpful in getting started - it synthesizes key research in your topic. Some databases let you limit to review papers; e.g. in Engineering Village databases main search interface you can limit to 'treatment type' of 'General Review' or 'Literature Review'.
You can find articles and conference papers in the following databases:
Scopus is a navigation tool covering the world's largest collection of abstracts, references and indexes of scientific, technical, and medical (STM) literature. Seamless links to full-text articles and other library resources make Scopus quick, easy, and comprehensive.