M. Freudenberg

Extrapyramidal features in advanced Down's syndrome: clinical evaluation and family history.

P. Vieregge, G. Ziemens, M. Freudenberg, 1991, Journal of neurology, neurosurgery, and psychiatry.

Parkinsonian features in advanced Down's syndrome.

D. Kömpf, P. Vieregge, G. Ziemens, 1991, Journal of neural transmission. Supplementum.

Broensted plots in the reactions of 2,4-dinitrophenyl acetate and methyl phenyl carbonate with substituted pyridines

E. Castro, M. Freudenberg, 1980 .