Redirect Notice
The previous page is sending you to
https://www.sciencedirect.com/science/article/pii/S0007153677800417/pdf?md5=7b49c02140e61e137aa70e6ab40476fa&pid=1-s2.0-S0007153677800417-main.pdf
.
If you do not want to visit that page, you can
return to the previous page
.