Suru, D.P.Talreja, S.T.Vaidya, V.H.Doshi, Y.S.Rao, P.S.2012-03-272012-03-271967http://hdl.handle.net/1968424/1122enNatural radioactivity in seaweeds and seawater concentrates of saurashtra coast-II. seasonal variation and kinetics of calcium-45 isotope exchange between ulvaArticle