| article html file updated | 10 February 2020 00:37 CET | Update | https://www.mdpi.com/2218-1997/4/7/78 |
| article html file updated | 30 April 2019 03:49 CEST | Update | N/A |
| article html file updated | 15 April 2019 23:09 CEST | Update | N/A |
| article html file updated | 30 March 2019 18:39 CET | Update | N/A |
| article html file updated | 2 August 2018 06:29 CEST | Update | N/A |
| article html file updated | 30 July 2018 04:15 CEST | Update | N/A |
| article html file updated | 9 July 2018 14:33 CEST | Original file | N/A |
| article xml uploaded. | 9 July 2018 14:32 CEST | Original file | https://www.mdpi.com/2218-1997/4/7/78/xml |
| article pdf uploaded. | 9 July 2018 14:32 CEST | Version of Record | https://www.mdpi.com/2218-1997/4/7/78/pdf |
