| article html file updated | 8 February 2020 01:29 CET | Update | https://www.mdpi.com/2077-0472/7/3/28 |
| article html file updated | 23 September 2019 19:57 CEST | Update | - |
| article html file updated | 4 May 2019 06:40 CEST | Update | - |
| article html file updated | 28 March 2017 03:24 CEST | Update | - |
| article html file updated | 15 March 2017 10:19 CET | Original file | - |
| article xml uploaded. | 15 March 2017 10:18 CET | Original file | https://www.mdpi.com/2077-0472/7/3/28/xml |
| article pdf uploaded. | 15 March 2017 10:18 CET | Version of Record | https://www.mdpi.com/2077-0472/7/3/28/pdf |
