MEYERS, Larry N. - KOPECKY, Mark J. Industrial wood ash as a soil amendment for crop production. In Tappi Journal, 1998, roč. 81, č. 4, s. 123-130Error: read handle in (rep.epca.fmtISO690).fmtXDatabaze. Dostupné na internete: <https://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=2216487>