Complex sentence: H. M. (Dick) Vullinghs (born ca.1936 in's-Hertogenbosch) is a Dutch aerospace engineer at Fokker, known as co-founder of the International Project Management Association.
Split into simpler sentences: H. M. (Dick) Vullinghs (born ca.1936 in's-Hertogenbosch) is a Dutch aerospace engineer, who worked at Fokker. He is known as co-founder of the International Project Management Association.