Search methods - from snowball to cited reference search
There are different search methods to help you find the information you need.

Quick & dirty
If you want to get information in a hurry, or if you want a quick introduction to a topic, you can use the so-called quick and dirty method.

Snowball
Search for older publications
If you wish to obtain detailed information about a subject or find lots of information, you can use the snowball method.

Cited reference
Search for newer publications
With this method, the search starts with a key document, as with the snowball method.

Related.