Are there any useful effects of wastes in the crop production?

Tóth, B., Stipesevic, B., Jug, D., Veres, S., Lévai, L.: Are there any useful effects of wastes in the crop production?.
In: Agricultrure in Nature and Environment Protection. Ed.: Bojan Stipesevic, Roberta Soric, Osjecki list d.o.o. Osijek, Vukovar, 124-129, 2011. ISBN: 9789537693015