An article "Plotting the van der Waals Fluid in 3D and the Maxwell Construction" :https://drive.google.com/file/d/0BzWBsC45XWEtS2sxX1dNMkNEOFk/view?usp=sharing

https://drive.google.com/file/d/0BzWBsC45XWEtS2sxX1dNMkNEOFk/view?usp=sharing
or
http://tinyurl.com/n9qy868