| article html file updated | 8 February 2020 22:16 CET | Update | https://www.mdpi.com/2306-5729/2/4/39 |
| article html file updated | 28 September 2019 18:26 CEST | Update | N/A |
| article html file updated | 2 May 2019 12:37 CEST | Update | N/A |
| article html file updated | 18 April 2019 10:14 CEST | Update | N/A |
| article html file updated | 25 November 2017 12:07 CET | Original file | N/A |
| article xml uploaded. | 25 November 2017 12:05 CET | Update | https://www.mdpi.com/2306-5729/2/4/39/xml |
| article xml uploaded. | 25 November 2017 12:05 CET | Update | N/A |
| article xml uploaded. | 25 November 2017 12:05 CET | Original file | N/A |
| article pdf uploaded. | 25 November 2017 12:05 CET | Version of Record | https://www.mdpi.com/2306-5729/2/4/39/pdf |
