| article html file updated | 8 February 2020 02:12 CET | Update | https://www.mdpi.com/2075-4701/7/4/110 |
| article html file updated | 23 September 2019 23:58 CEST | Update | - |
| article html file updated | 4 May 2019 05:09 CEST | Update | - |
| article html file updated | 28 April 2017 06:49 CEST | Update | - |
| article html file updated | 28 March 2017 06:02 CEST | Original file | - |
| article xml uploaded. | 28 March 2017 06:00 CEST | Original file | https://www.mdpi.com/2075-4701/7/4/110/xml |
| article pdf uploaded. | 28 March 2017 06:00 CEST | Updated version of record | https://www.mdpi.com/2075-4701/7/4/110/pdf |
| article pdf uploaded. | 24 March 2017 12:39 CET | Version of Record | https://www.mdpi.com/2075-4701/7/4/110/pdf-vor |
