Szajsner, Hanna; Bąbelewski, Przemysław (2014). „The Influence of Laser Beam and Auxins on Rooting of Leatherleaf Viburnum ( VIBURNUM RHYTIDOPHYIIUM Hemsl.) Cuttings”. Journal of Horticultural Research. 22: 63—66. S2CID55961464. doi:10.2478/johr-2014-0007.
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Szajsner, Hanna; Bąbelewski, Przemysław (2014). „The Influence of Laser Beam and Auxins on Rooting of Leatherleaf Viburnum ( VIBURNUM RHYTIDOPHYIIUM Hemsl.) Cuttings”. Journal of Horticultural Research. 22: 63—66. S2CID55961464. doi:10.2478/johr-2014-0007.