| article html file updated | 8 February 2020 00:41 CET | Update | https://www.mdpi.com/2075-4701/7/3/81 |
| article html file updated | 23 September 2019 15:21 CEST | Update | N/A |
| article html file updated | 4 May 2019 08:26 CEST | Update | N/A |
| article html file updated | 28 March 2017 11:07 CEST | Update | N/A |
| article html file updated | 3 March 2017 11:27 CET | Update | N/A |
| article html file updated | 3 March 2017 11:26 CET | Update | N/A |
| article html file updated | 3 March 2017 11:26 CET | Original file | N/A |
| article xml uploaded. | 3 March 2017 11:25 CET | Original file | https://www.mdpi.com/2075-4701/7/3/81/xml |
| article pdf uploaded. | 3 March 2017 11:25 CET | Version of Record | https://www.mdpi.com/2075-4701/7/3/81/pdf |
