| article html file updated | 9 February 2020 06:53 CET | Update | https://www.mdpi.com/2075-4701/8/2/135 |
| article html file updated | 30 September 2019 20:47 CEST | Update | - |
| article html file updated | 1 May 2019 17:54 CEST | Update | - |
| article html file updated | 17 April 2019 17:14 CEST | Update | - |
| article html file updated | 28 March 2019 23:51 CET | Update | - |
| article html file updated | 22 February 2018 08:08 CET | Original file | - |
| article xml uploaded. | 22 February 2018 08:07 CET | Original file | https://www.mdpi.com/2075-4701/8/2/135/xml |
| article pdf uploaded. | 22 February 2018 08:07 CET | Updated version of record | https://www.mdpi.com/2075-4701/8/2/135/pdf |
| article pdf uploaded. | 16 February 2018 13:50 CET | Version of Record | https://www.mdpi.com/2075-4701/8/2/135/pdf-vor |
