TY  - RPRT
TI  - Problems in fitting a cosine curve.
AU  - R Hildebrand
AU  - I Haubitz
AU  - M Schultz
PY  - 1984
DO  - 10.3109/07420528409059124
UR  - https://pubmed.ncbi.nlm.nih.gov/6600023/
ID  - 6600023
ER  -