Dynamische matrices en gedrag van matrices op aangrenzende cellen – Microsoft Ondersteuning
https://support.microsoft.com/nl-nl/office/dynamische-matrices-en-gedrag-van-matrices-op-aangrenzende-cellen-205c6b06-03ba-4151-89a1-87a7eb36e531
Excel Dynamic Array; A Beginner’s Tutorial | GoSkills
https://www.goskills.com/Excel/Resources/Excel-dynamic-arrays#:~:text=Excel%20has%20introduced%20a%20spill,D5%20with%20the%20expression%20D2%23.