| article html file updated | 8 February 2020 13:53 CET | Update | https://www.mdpi.com/2304-8158/6/8/70 |
| article html file updated | 26 September 2019 15:01 CEST | Update | N/A |
| article html file updated | 3 May 2019 06:18 CEST | Update | N/A |
| article html file updated | 27 March 2019 21:31 CET | Update | N/A |
| article html file updated | 1 September 2017 08:26 CEST | Update | N/A |
| article html file updated | 18 August 2017 13:55 CEST | Original file | N/A |
| article xml uploaded. | 18 August 2017 13:53 CEST | Original file | https://www.mdpi.com/2304-8158/6/8/70/xml |
| article pdf uploaded. | 18 August 2017 13:53 CEST | Version of Record | https://www.mdpi.com/2304-8158/6/8/70/pdf |
