I did a quick Google search. This work seems to be mentioned only by creationist-oriented websites. No peer-reviewed journal seems to have heard of the authors. So I'm skeptical.
It's even worse. Lambert Dolphin is the the primary funder of Barry Setterfield and his C-decay model, which is the advancement of the Montgomery & Dolphin paper. The C-decay model is a primary exhibit of what happens when people don't pay attention to significant figures in their work. Garbage in, Garbage out.