. . . . . "Proximal remote sensing of tree physiology at northern treeline: Do late-season changes in the photochemical reflectance index (PRI) respond to climate or photoperiod?"@en . . . "Jan U.H. Eitel" . . "\u043D\u0430\u0443\u043A\u043E\u0432\u0430 \u0441\u0442\u0430\u0442\u0442\u044F, \u043E\u043F\u0443\u0431\u043B\u0456\u043A\u043E\u0432\u0430\u043D\u0430 \u0443 2019"@uk . . "Lee A. Vierling" . "Proximal remote sensing of tree physiology at northern treeline: Do late-season changes in the photochemical reflectance index (PRI) respond to climate or photoperiod?"@en . "Arjan J.H. Meddens" . . . . "221" . "Johanna Jensen" . "10.1016/J.RSE.2018.11.022" . . "Peter J. Mahoney" . "article scientifique publi\u00E9 en 2019"@fr . . "Andrew J. Maguire" . . . . . . . . . . "art\u00EDculu cient\u00EDficu espubliz\u00E1u en 2019"@ast . . . "scientific article published in 2019"@en . . . "340-350" . . . "Proximal remote sensing of tree physiology at northern treeline: Do late-season changes in the photochemical reflectance index (PRI) respond to climate or photoperiod?"@en . . "Proximal remote sensing of tree physiology at northern treeline: Do late-season changes in the photochemical reflectance index (PRI) respond to climate or photoperiod?"@en . "2019-02-01T00:00:00Z"^^ . .