H.Burda,S.Begall,J.Cervený,J.Neefi inni.Extremely low-frequency electromagnetic fields disrupt magnetic alignment of ruminants.„Proc Natl Acad Sci U S A”.106(14),s.5708–5713,2009. DOI: 10.1073/pnas.0811194106. PMID: 19299504.
H.Burda,S.Begall,J.Cervený,J.Neefi inni.Extremely low-frequency electromagnetic fields disrupt magnetic alignment of ruminants.„Proc Natl Acad Sci U S A”.106(14),s.5708–5713,2009. DOI: 10.1073/pnas.0811194106. PMID: 19299504.