| article html file updated | 8 February 2020 01:47 CET | Update | https://www.mdpi.com/1996-1073/10/3/391 |
| article html file updated | 23 September 2019 21:40 CEST | Update | N/A |
| article html file updated | 4 May 2019 05:59 CEST | Update | N/A |
| article html file updated | 28 March 2017 11:45 CEST | Update | N/A |
| article html file updated | 21 March 2017 07:18 CET | Original file | N/A |
| article xml uploaded. | 21 March 2017 07:16 CET | Original file | https://www.mdpi.com/1996-1073/10/3/391/xml |
| article pdf uploaded. | 21 March 2017 07:16 CET | Updated version of record | https://www.mdpi.com/1996-1073/10/3/391/pdf |
| article pdf uploaded. | 19 March 2017 10:56 CET | Version of Record | https://www.mdpi.com/1996-1073/10/3/391/pdf-vor |
