"Honkballer Gregory Halman doodgestoken" [Baseball player Gregory Halman stabbed to death]. NOS (in Dutch). November 21, 2011. Archived from the original on September 10, 2024. Retrieved September 10, 2024.
"Honkballer Gregory Halman doodgestoken" [Baseball player Gregory Halman stabbed to death]. NOS (in Dutch). November 21, 2011. Archived from the original on September 10, 2024. Retrieved September 10, 2024.