. "1959-10-29" . "Liebregts" . "Peter Th. M. G. Liebregts" . "Liebregts, P.Th.M.G. (Petrus Theodorus Maria Gemma)" . "P.Th.M.G. Liebregts"@nl-NL . "P. T. M. G. Liebregts" . "P. Th. M. G. Liebregts"@en . . "Liebregts"@fr-FR . "Peter Theodorus Maria Gemma Liebregts" . "P."@en . "Petrus" . . . . . . "Peter Liebregts" . "Peter" . "Theodorus Maria Gemma" . . "Petrus Theodorus Maria Gemma Liebregts" . . "Liebregts"@en . "Th. M. G."@en . "Peter Liebregts" . "Petrus Theodorus Maria Gemma Liebregts" . . .