• Free vibration analysis of a functionally graded material beam : evaluation of the Haar wavelet methodKirs, Maarjus; Karjust, Kristo; Aziz, Imran; Õunapuu, Erko; Tungel, ErnstProceedings of the Estonian Academy of Sciences2018 / p. 1-9 : ill https://doi.org/10.3176/proc.2017.4.01 http://www.ester.ee/record=b2355998*est https://www.scopus.com/sourceid/11500153303 https://www.scopus.com/record/display.uri?eid=2-s2.0-85041102344&origin=inward&txGid=6e7b04057407e5085d21758ad3d4d40e https://jcr.clarivate.com/jcr-jp/journal-profile?journal=P%20EST%20ACAD%20SCI&year=2022 https://www.webofscience.com/wos/woscc/full-record/WOS:000426595500001