| article html file updated | 8 February 2020 03:21 CET | Update | https://www.mdpi.com/2075-4701/7/4/134 |
| article html file updated | 24 September 2019 06:29 CEST | Update | N/A |
| article html file updated | 4 May 2019 02:39 CEST | Update | N/A |
| article html file updated | 28 April 2017 06:57 CEST | Update | N/A |
| article html file updated | 14 April 2017 03:01 CEST | Original file | N/A |
| article xml uploaded. | 14 April 2017 03:00 CEST | Update | https://www.mdpi.com/2075-4701/7/4/134/xml |
| article pdf uploaded. | 14 April 2017 02:59 CEST | Updated version of record | https://www.mdpi.com/2075-4701/7/4/134/pdf |
| article pdf uploaded. | 11 April 2017 14:31 CEST | Version of Record | https://www.mdpi.com/2075-4701/7/4/134/pdf-vor |
