| article html file updated | 8 February 2020 23:08 CET | Update | https://www.mdpi.com/2220-9964/6/12/399 |
| article html file updated | 28 September 2019 23:49 CEST | Update | N/A |
| article html file updated | 2 May 2019 10:39 CEST | Update | N/A |
| article html file updated | 18 April 2019 08:16 CEST | Update | N/A |
| article html file updated | 2 January 2018 18:48 CET | Update | N/A |
| article html file updated | 5 December 2017 10:06 CET | Original file | N/A |
| article xml uploaded. | 5 December 2017 10:04 CET | Update | https://www.mdpi.com/2220-9964/6/12/399/xml |
| article xml uploaded. | 5 December 2017 10:04 CET | Original file | N/A |
| article pdf uploaded. | 5 December 2017 10:04 CET | Version of Record | https://www.mdpi.com/2220-9964/6/12/399/pdf |
