. . . . . "Pieter" . "Peter Cornelius" . "Peter Verhoef" . "P. C. Verhoef" . "Peter Verhoef" . "Pieter Cornelis Verhoef" . "P.C" . "Pieter Cornelis" . "Peter Cornelis" . "Peter Cornelis Verhoef" . . . "Peter Cornelius Verhoef" . . "P. C." . "Cornelis" . "Peter" . "P." . "P. C. " . "P. C. Verhoef" . "P.C. Verhoef" . "1972" . "Peter C. Verhoef"@en . "C." . "Pieter Cornelis Verhoef" . "Verhoef, Peter C. (Pieter Cornelis)" . "P.C Verhoef" . "Verhoef" . . "P. C. Verhoef" . "P.C." .