| article html file updated | 8 February 2020 05:55 CET | Update | https://www.mdpi.com/2072-6643/9/5/501 |
| article html file updated | 24 September 2019 20:13 CEST | Update | - |
| article html file updated | 3 May 2019 21:56 CEST | Update | - |
| article html file updated | 1 June 2017 07:32 CEST | Update | - |
| article html file updated | 23 May 2017 04:16 CEST | Update | - |
| article html file updated | 15 May 2017 15:44 CEST | Original file | - |
| article xml uploaded. | 15 May 2017 15:42 CEST | Original file | https://www.mdpi.com/2072-6643/9/5/501/xml |
| article pdf uploaded. | 15 May 2017 15:42 CEST | Version of Record | https://www.mdpi.com/2072-6643/9/5/501/pdf |
