Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Shanmugasundaram Thangaraju and Martin Heilmaier and Budaraju Srinivasa Murty and Subramanya Sarma Vadlamani,On the Estimation of True Hall–Petch Constants and Their Role on the Superposition Law Exponent in Al Alloys,Advanced Engineering Materials,1438-1656,Wiley,2012-08-21,14,10,892-897,https://cir.nii.ac.jp/crid/1364233270853141888,https://doi.org/10.1002/adem.201200114