P. Hartwig

Flavor characteristics of lactic, malic, citric, and acetic acids at various pH levels

P. Hartwig, M. McDaniel, 1995 .

Biodegradable poly(amidoamine)s with uniform degradation fragments via sequence-controlled macromonomers

P. Hartwig, L. Hartmann, M. F. Ebbesen, 2016 .

The distribution, identification, and naming of the Mastomys natalensis species complex in southern Africa (Rodentia: Muridae)

P. Hartwig, C. A. Green, D. Gordon, 2009 .

Studies on plague in the eastern Cape Province of South Africa.

A. Shepherd, P. Hartwig, P. Leman, 1983, Transactions of the Royal Society of Tropical Medicine and Hygiene.