| article html file updated | 8 February 2020 00:02 CET | Update | https://www.mdpi.com/2218-273X/7/1/21 |
| article html file updated | 23 September 2019 11:32 CEST | Update | N/A |
| article html file updated | 4 May 2019 09:57 CEST | Update | N/A |
| article html file updated | 14 March 2018 17:56 CET | Update | N/A |
| article html file updated | 29 March 2017 06:04 CEST | Update | N/A |
| article html file updated | 23 February 2017 10:53 CET | Original file | N/A |
| article xml uploaded. | 23 February 2017 10:52 CET | Update | https://www.mdpi.com/2218-273X/7/1/21/xml |
| article xml uploaded. | 23 February 2017 10:52 CET | Original file | N/A |
| article pdf uploaded. | 23 February 2017 10:52 CET | Updated version of record | https://www.mdpi.com/2218-273X/7/1/21/pdf |
| article pdf uploaded. | 22 February 2017 15:46 CET | Updated version of record | https://www.mdpi.com/2218-273X/7/1/21/pdf-vor |
| article pdf uploaded. | 22 February 2017 14:52 CET | Version of Record | https://www.mdpi.com/2218-273X/7/1/21/pdf-vor |
