| article html file updated | 8 February 2020 02:11 CET | Update | https://www.mdpi.com/1999-4893/10/2/38 |
| article html file updated | 23 September 2019 23:57 CEST | Update | N/A |
| article html file updated | 4 May 2019 05:10 CEST | Update | N/A |
| article html file updated | 28 June 2017 12:24 CEST | Update | N/A |
| article html file updated | 27 March 2017 15:02 CEST | Original file | N/A |
| article xml uploaded. | 27 March 2017 15:01 CEST | Original file | https://www.mdpi.com/1999-4893/10/2/38/xml |
| article pdf uploaded. | 27 March 2017 15:01 CEST | Updated version of record | https://www.mdpi.com/1999-4893/10/2/38/pdf |
| article pdf uploaded. | 24 March 2017 12:34 CET | Version of Record | https://www.mdpi.com/1999-4893/10/2/38/pdf-vor |