Doelman, P., Doelman Advies, August Faliseweg 10, 6703 AS Wageningen, Nederland, Netherlands

• Suid-Afrikaans Tydskrif vir Natuurwetenskap en Tegnologie / <i>South African Journal of Science and Technology</i> Vol 25 No 4 (2006) - Oorspronklike Navorsing
  Vital soil as basis for sustainable soil management, a survey of soil problems in The Netherlands and the way to tackle it, with an assessment for the South African situation
  Abstract  PDF