| article html file updated | 7 February 2020 16:31 CET | Update | https://www.mdpi.com/2227-9717/4/4/39 |
| article html file updated | 22 September 2019 03:13 CEST | Update | N/A |
| article html file updated | 5 May 2019 01:21 CEST | Update | N/A |
| article html file updated | 30 December 2016 09:09 CET | Update | N/A |
| article html file updated | 30 December 2016 06:02 CET | Update | N/A |
| article html file updated | 8 November 2016 04:58 CET | Update | N/A |
| article xml uploaded. | 8 November 2016 04:56 CET | Update | https://www.mdpi.com/2227-9717/4/4/39/xml |
| article xml uploaded. | 8 November 2016 04:56 CET | Update | N/A |
| article pdf uploaded. | 8 November 2016 04:56 CET | Updated version of record | https://www.mdpi.com/2227-9717/4/4/39/pdf |
| article html file updated | 2 November 2016 08:18 CET | Update | N/A |
| article xml uploaded. | 2 November 2016 08:17 CET | Update | N/A |
| article xml uploaded. | 2 November 2016 08:17 CET | Update | N/A |
| article pdf uploaded. | 2 November 2016 08:17 CET | Updated version of record | https://www.mdpi.com/2227-9717/4/4/39/pdf-vor |
| article html file updated | 18 October 2016 09:44 CEST | Original file | N/A |
| article xml uploaded. | 18 October 2016 09:42 CEST | Update | N/A |
| article pdf uploaded. | 18 October 2016 09:42 CEST | Version of Record | https://www.mdpi.com/2227-9717/4/4/39/pdf-vor |
| article xml uploaded. | 18 October 2016 09:42 CEST | Original file | N/A |
