Keys and fields
You can search with free keys in titles, authors, keywords and abstracts. Those fields can be selected in each line. Upper and lower case letters in the keys are not distinguished. If no key is supplied, that line is ignored. For example, following three Samples, 1.1, 1.2 and 1.3 make same results.
For some keys, you can get logical operation with "and", "or" and "not".
You can obtain article which have the words "Fe" AND "Cu" in line.
"OR" of the former example.
The following example shows the articles with the word "Pd" or "Au" in titles and does not contains "tanaka" in authors.
The logical operations in each line are performed straight forwards. The result of Sample 2.4 and 2.5 are not same.