I would like to know if the following terms and conditions are
acceptable for a software (3D-ICE) released under the GPL license:
"IMPORTANT INFORMATION: Any usage of 3D-ICE for research, commercial
or other purposes must be properly acknowledged in the resulting
products or publications. Specifically, the publications 1 and 2 below
must be cited in all cases."
If not, what does upstream need to do? Please do let me know,