| article html file updated | 9 February 2020 04:14 CET | Update | https://www.mdpi.com/2220-9964/7/2/38 |
| article html file updated | 30 September 2019 04:51 CEST | Update | N/A |
| article html file updated | 1 May 2019 23:47 CEST | Update | N/A |
| article html file updated | 17 April 2019 22:20 CEST | Update | N/A |
| article html file updated | 28 March 2019 18:08 CET | Update | N/A |
| article html file updated | 14 March 2018 14:46 CET | Update | N/A |
| article pdf uploaded. | 25 January 2018 09:19 CET | Updated version of record | https://www.mdpi.com/2220-9964/7/2/38/pdf |
| article html file updated | 24 January 2018 16:55 CET | Original file | N/A |
| article xml uploaded. | 24 January 2018 16:54 CET | Update | https://www.mdpi.com/2220-9964/7/2/38/xml |
| article xml uploaded. | 24 January 2018 16:54 CET | Original file | N/A |
| article pdf uploaded. | 24 January 2018 16:54 CET | Version of Record | https://www.mdpi.com/2220-9964/7/2/38/pdf-vor |
