| article html file updated | 9 February 2020 01:04 CET | Update | https://www.mdpi.com/2073-4352/8/1/6 |
| article html file updated | 29 September 2019 10:58 CEST | Update | N/A |
| article html file updated | 2 May 2019 06:25 CEST | Update | N/A |
| article html file updated | 18 April 2019 04:21 CEST | Update | N/A |
| article html file updated | 28 March 2019 10:51 CET | Update | N/A |
| article html file updated | 1 February 2018 10:21 CET | Update | N/A |
| article html file updated | 25 December 2017 09:02 CET | Update | N/A |
| article xml uploaded. | 25 December 2017 09:01 CET | Update | https://www.mdpi.com/2073-4352/8/1/6/xml |
| article xml uploaded. | 25 December 2017 09:01 CET | Update | N/A |
| article pdf uploaded. | 25 December 2017 09:01 CET | Updated version of record | https://www.mdpi.com/2073-4352/8/1/6/pdf |
| article html file updated | 24 December 2017 08:11 CET | Original file | N/A |
| article xml uploaded. | 24 December 2017 08:10 CET | Original file | N/A |
| article pdf uploaded. | 24 December 2017 08:10 CET | Version of Record | https://www.mdpi.com/2073-4352/8/1/6/pdf-vor |
