| article html file updated | 8 February 2020 03:15 CET | Update | https://www.mdpi.com/2077-0383/6/4/45 |
| article html file updated | 24 September 2019 05:57 CEST | Update | N/A |
| article html file updated | 4 May 2019 02:50 CEST | Update | N/A |
| article html file updated | 28 April 2017 06:48 CEST | Update | N/A |
| article html file updated | 11 April 2017 14:22 CEST | Update | N/A |
| article xml uploaded. | 11 April 2017 14:21 CEST | Update | https://www.mdpi.com/2077-0383/6/4/45/xml |
| article pdf uploaded. | 11 April 2017 14:21 CEST | Updated version of record | https://www.mdpi.com/2077-0383/6/4/45/pdf |
| article html file updated | 10 April 2017 11:43 CEST | Original file | N/A |
| article pdf uploaded. | 10 April 2017 11:42 CEST | Version of Record | https://www.mdpi.com/2077-0383/6/4/45/pdf-vor |
