Searching for journal articles
There are 2 good databases for searching for scientific journal articles in the life sciences:
To search on Pubmed, you can use simple lists of words, or phrases in quotes like this:
ferret parvalbumin cortex
"Hubel" and "cortex"
More complicated searches can be made by using OR and NOT
("squirrel" or "squirrels") NOT ("squirrel monkey" OR "squirrel monkeys")
To search for journals you can add the following
"Hubel" and "cortex" and "J Neurophysiol"
Full instructions for searching are here