| article html file updated | 9 February 2020 05:51 CET | Update | https://www.mdpi.com/2227-9717/6/2/14 |
| article html file updated | 1 May 2019 20:12 CEST | Update | N/A |
| article html file updated | 17 April 2019 19:16 CEST | Update | N/A |
| article html file updated | 28 March 2019 21:40 CET | Update | N/A |
| article html file updated | 14 March 2018 14:52 CET | Update | N/A |
| article html file updated | 8 February 2018 12:41 CET | Original file | N/A |
| article xml uploaded. | 8 February 2018 12:40 CET | Original file | https://www.mdpi.com/2227-9717/6/2/14/xml |
| article pdf uploaded. | 8 February 2018 12:40 CET | Updated version of record | https://www.mdpi.com/2227-9717/6/2/14/pdf |
| article pdf uploaded. | 7 February 2018 16:21 CET | Version of Record | https://www.mdpi.com/2227-9717/6/2/14/pdf-vor |
