Articles (4)
- The influence of organic inputs, acidification and fluctuating discharge on a spring ecosystem. …Ilja Krno, Ferdinand Sporka, E. Bulankova, E. Tirjaková, et al. (1998): The influence of organic inputs, acidification and fluctuating discharge on a spring ecosystem. In: Bretschko G. & Helesic J. (eds.): – Adv. River Bottom Ecol., Backhuys Publ., Leiden – : 99 - 106.
- Material and methods. In: Krno (ed. ): Limnology of the Turiec river basin (West Carpathians, …Ilja Krno, Ferdinand Sporka, E. Tirjaková (1996): Material and methods. In: Krno (ed.): Limnology of the Turiec river basin (West Carpathians, Slovakia) – biologia – 51: 10 - 11.
- Influence of the construction of the Turcek resvervoir on the organisms of the river bottomIlja Krno, Ferdinand Sporka, E. Tirjaková, E. Tirjakova (1995): Influence of the construction of the Turcek resvervoir on the organisms of the river bottom – Fol. Fac. Sci. Nat. Univ. Masarykianae Brunensis, Biologia – 91: 53 - 62.
- Ferdinand Sporka, Otto Moog (1995): Nais stolci (Hrabe 1981) in der Slowakei und Österreich (Oligochaeta: Naididae). – Lauterbornia – 1995_20: 93 - 97.