| article html file updated | 9 February 2020 06:04 CET | Update | https://www.mdpi.com/2220-9964/7/2/60 |
| article html file updated | 30 September 2019 15:59 CEST | Update | N/A |
| article html file updated | 1 May 2019 19:44 CEST | Update | N/A |
| article html file updated | 17 April 2019 18:51 CEST | Update | N/A |
| article html file updated | 28 March 2019 22:08 CET | Update | N/A |
| article html file updated | 14 March 2018 14:54 CET | Update | N/A |
| article html file updated | 9 February 2018 11:49 CET | Original file | N/A |
| article xml uploaded. | 9 February 2018 11:23 CET | Update | https://www.mdpi.com/2220-9964/7/2/60/xml |
| article xml uploaded. | 9 February 2018 11:23 CET | Original file | N/A |
| article pdf uploaded. | 9 February 2018 11:23 CET | Version of Record | https://www.mdpi.com/2220-9964/7/2/60/pdf |
