| article html file updated | 7 February 2020 05:54 CET | Update | https://www.mdpi.com/2071-1050/8/3/252 |
| article html file updated | 5 May 2019 21:28 CEST | Update | - |
| article html file updated | 26 March 2019 23:27 CET | Update | - |
| article html file updated | 31 March 2016 08:42 CEST | Original file | - |
| article xml uploaded. | 15 March 2016 12:57 CET | Original file | https://www.mdpi.com/2071-1050/8/3/252/xml |
| article pdf uploaded. | 15 March 2016 12:57 CET | Version of Record | https://www.mdpi.com/2071-1050/8/3/252/pdf |
