Mostinfluential paper from 10 years +/- 1 year ago (Joint Award)
R. DeLine, M. Czerwinski, G. Robertson: "Easing programcomprehension by sharing navigation data" (VL/HCC 2005)
http://dx.doi.org/10.1109/VLHCC.2005.32
and
G. Varro, A. Schürr, D. Varro: "Benchmarking for graphtransformation" (VL/HCC 2005)
http://dx.doi.org/10.1109/VLHCC.2005.23

Most influential paper from 20 years +/- 1 year ago
M. Minas, G. Viehstaedt: "DiaGen: a generator fordiagram editors providing direct manipulation and execution of diagrams"(VL 1995)
http://dx.doi.org/10.1109/VL.1995.520810