You may be able to access a copy if URLs are provided below. (Contact Author) Official URL: <a href="http://dx.doi.org/10.1016/j.na.2010.01.034">http://dx.doi.org/10.1016/j.na.2010.01.034</a> Abstract As a key example, the sixth-order doubly degenerate parabolic equation from thin film theory, u(t) = (vertical bar u vertical bar(m)vertical bar u(xxxxx)vertical bar(n)u(xxxxx))(x) in R x R+, with two parameters, n >= 0 and m is an element of (-n, n + 2),