M. Sabovljevic, V. Vukojevic, N. Mihajlovic, G. Drazic and Z. Vucinic, “Determination of Heavy Metal Deposition in the County of Obrenovac (Serbia) Using Mosses as Bioindicators, I: Aluminum (Al), Arsenic (As), and Boron (B),” Archives of Biological Sciences, Vol. 57, No. 3, 2005, pp. 205-212. doi:10.2298/ABS0503205S
 S. S. Sidhu, “Fluoride Levels in Air, Vegetation and Soil in the Vicinity of a Phosphorus Plant,” Journal of the Air Pollution Control Association, Vol. 29, No. 10, 1979, pp. 1069-1072. doi:10.1080/00022470.1979.10470899
 L. H. Wenstein and A. W. Davison, “Native Plant Species Suitable as Bioindicators and Biomonitors for Airborne Fluoride,” Environmental Pollution, Vol. 125, No. 1, 2003, pp. 3-11. doi:10.1016/S0269-7491(03)00090-3
 G. Busuoic, I. David, M. Sencovici and N. Iliescu, “Evaluation of Capacity for Bioaccumalation of Some Heavy Metals in Three Aquatic Plants Species,” In: P. Gastescu, W. Lewis Jr. and P. Bretcan, Eds., Proceedings of the Water Resources and Wetlands, Tulcea, 14-16 September 2012, pp. 220-223.
 V. Irudayaraj, M. Johnson, A. S. Priyakumari and P. A. Janani, “Effect of Heavy Metal Stress on Spore Germination of Pteris confusa T. G. Walker and Pteris argyraea T. Moore,” Journal of Stress Physiology & Biochemistry, Vol. 7, No. 4, 2011, pp. 1208-216.
 B. Maňkovská, M. Florek, M. V. Frontasyeva, E. Ermakova, K. Oprea and S. S. Pavlov, “Atmospheric Deposition of Heavy Metals in Slovakia Studied by the Moss Biomonitoring Technique, Neutron Activation and Lame Atomic Absorption Spectrometry,” Ecologia, Vol. 22, No. 1, 2003, pp. 157-162.
 F. Xie and Z. H. Zhang, “Accumulation Characteristic of Heavy Metals between Gametophytes and Sporophytes of Moss Funaria hygrometrica,” Bulletin of Botanical Research, Vol. 31, No. 1, 2011, pp. 117-120.
 A. Basile, A. E. Cogoni, P. Bassi, E. Fabrizi, S. Sorbo, S. Giordano and R. C. Cobianchi, “Accumulation of Pb and Zn in Gametophytes and Sporophytes of the Moss Funaria hygrometrica (Funariales),” Annals of Botany, Vol. 87, No. 4, 2001, pp. 537-543.
 N. Ljubesic, M. Wrischer, T. Prebeg and Z. Devidé, “Structural Changes of Lamellar Cells in Leaves of the Moss Polytrichum formosum Hedw. during Winter Freezing and Thawing Processes,” Acta Botanica Croatica, Vol. 64, No. 2, 2005, pp. 219-226.
 D. H. S. Richardson, M. Shoreb, R. Hartreeb and R. M. Richardson, “The Use of X-Ray Fluorescence Spectrometry for the Analysis of Plants, Especially Lichens, Employed in Biological Monitoring,” Science of the Total Environment, Vol. 176, No. 1-3, 1995, pp. 97-105.
 J. Boman, H. Blanck, P. Standzenieks, R. P. Pettersson and N. T. Hong, “Sample Preparation and EDXRF Analysis of Element Content in Marine Algal Communities— A Tentative Approach,” X-Ray Spectrometry, Vol. 22, No. 4, 1993, pp. 260-264. doi:10.1002/xrs.1300220416
 A. Aslan, G. Budak and A. Karabulut, “The Amount Fe, Ba, Sr, K, Ca, and Ti in Some Lichens Growing in Erzurum Province (Turkey),” Journal of Quantitative Spectroscopy and Radiative Transfer, Vol. 88, No. 4, 2004, pp. 423-431.
 C. J. F. Ter Braak and P. Smilauer, “CANOCO Reference Manual and CanoDraw for Windows User’s Guide. Software for Canonical Community Ordination (Version 4.5),” Biometris, Wageningen & Ceské Budějovice, 2002.
 A. Fargasová, “Znecistenie Kovmi na Slovensku,” 2009. http://www.enviro-edu.sk/?page=environmentalne_problemy/znecistenie_kovmi_na_slovensku
 D. H. Brown and G. W. Buck, “Distribution of Potassium, Calcium and Magnesium in the Gametophyte and Sporophyte Generations of Funaria hygrometrica Hedw.,” Annals of Botany, Vol. 42, No. 4, 1978, pp. 923-929.
 M. D. Vázquez, J. López and A. Carballeira, “Uptake of Heavy Metals to the Extracellular and Intracellular Compartments in Three Species of Aquatic Bryophyte,” Ecotoxicology and Environmental Safety, Vol. 44, No. 1, 1999, pp. 12-24. doi:10.1006/eesa.1999.1798
 M. Sidhu and D. H. Brown, “A New Laboratory Technique for Studying the Effects of Heavy Metals on Bryophyte Growth,” Annals of Botany, Vol. 78, No. 6, 1996, pp. 711-717. doi:10.1006/anbo.1996.0181
 R. Ligrone, J. G. Duckett and K. S. Renzaglia, “Conducting Tissues and Phyletic Relationships of Bryophytes,” Philosophical Transactions of the Royal Society of London, Vol. 355, No. 1398, 2000, pp. 795-813.
 S. Trachtenberg and E. Zamski, “Conduction of Ionic Solutes and Assimilates in the Leptom of Polytrichum juniperinum Willd.,” Journal of Experimental Botany, Vol. 29, No. 3, 1978, pp. 719-727. doi:10.1093/jxb/29.3.719
 S. Huttunen, “Reproduction of the Mosses Pleurozium schreberi and Pohlia nutans in the Surroundings of Copper Smelters at Harjavalta, SW Finland,” Journal of Bryology, Vol. 25, No. 1, 2003, pp. 41-47. doi:10.1179/037366803125002644
 S. K. Panda and S. Choudhury, “Changes in Nitrate Reductase Activity and Oxidative Stress Response in the Moss Polytrichum commune Subjected to Chromium, Copper and Zinc Phytotoxicity,” Brazilian Journal of Plant Physiology, Vol. 17, No. 2, 2005, pp. 191-197. doi:10.1590/S1677-04202005000200001
 L. Klavina, O. Bikovens, I. Steinberga, V. Maksimova and L. Eglite, “Characterization of Chemical Composition of Some Bryophytes Common in Latvia,” Environmental and Experimental Biology, No. 10, 2012, pp. 27-34.
 A. Odland and R. Moral, “Thirteen Years of Wetland Vegetation Succession Following a Permanent Drawdown, Myrkdalen Lake, Norway,” Plant Ecology, Vol. 162, No. 2, 2002, pp. 185-198. doi:10.1023/A:1020388910724
 T. V. Callaghan, M. C. Press, J. A. Lee, D. L. Robinson and C. W. Anderson, “Spatial and Temporal Variability in the Responses of Arctic Terrestrial Ecosystems to Environmental Change, ” Polar Research, Vol. 18, No. 2, 1999, pp. 191-197. doi:10.1111/j.1751-8369.1999.tb00293.x