Changes
→The template & format
<br>2.0 About Author 2 (input):
<br> 2.1 Problems Found<br> 2.2 Aim & Solution<br> 2.3 Cleaning/Restoration<br> 2.4 Recyclability<br> 2.5 Sources & Examples
<br>3.0 About Author 3 (input):
<br> 3.1 Problems Found<br> 3.2 Aim & Solution<br> 3.3 Cleaning/Restoration<br> 3.5 Sources & Examples
<br>4.0 About Author + (input):