TY  - RPRT
TI  - Nonlinear interactions and the 'Kemp echo'.
AU  - E de Boer
PY  - 1980
DO  - 10.1016/0378-5955(80)90089-1
UR  - https://pubmed.ncbi.nlm.nih.gov/7410257/
ID  - 7410257
ER  -