| article html file updated | 7 February 2020 22:57 CET | Update | https://www.mdpi.com/2077-0383/6/2/16 |
| article html file updated | 23 September 2019 05:33 CEST | Update | - |
| article html file updated | 4 May 2019 12:07 CEST | Update | - |
| article html file updated | 2 March 2017 09:46 CET | Update | - |
| article html file updated | 13 February 2017 10:07 CET | Original file | - |
| article xml uploaded. | 13 February 2017 10:06 CET | Original file | https://www.mdpi.com/2077-0383/6/2/16/xml |
| article pdf uploaded. | 13 February 2017 10:06 CET | Updated version of record | https://www.mdpi.com/2077-0383/6/2/16/pdf |
| article pdf uploaded. | 9 February 2017 09:28 CET | Version of Record | https://www.mdpi.com/2077-0383/6/2/16/pdf-vor |
