Research Trends examines how two types of keywords have different properties and serve different purposes in the search process.
Halevi, Gali and Moed, Henk F. Dr
"Identifying emerging research topics in Wind Enegy research using author given keywords,"
Research Trends: Vol. 1
, Article 5.
Available at: https://www.researchtrends.com/researchtrends/vol1/iss29/5