| article html file updated | 8 February 2020 01:46 CET | Update | https://www.mdpi.com/2077-0383/6/3/34 |
| article html file updated | 23 September 2019 21:33 CEST | Update | N/A |
| article html file updated | 4 May 2019 06:01 CEST | Update | N/A |
| article html file updated | 29 March 2017 22:22 CEST | Update | N/A |
| article html file updated | 21 March 2017 11:39 CET | Original file | N/A |
| article xml uploaded. | 21 March 2017 11:38 CET | Original file | https://www.mdpi.com/2077-0383/6/3/34/xml |
| article pdf uploaded. | 21 March 2017 11:38 CET | Updated version of record | https://www.mdpi.com/2077-0383/6/3/34/pdf |
| article pdf uploaded. | 19 March 2017 09:10 CET | Version of Record | https://www.mdpi.com/2077-0383/6/3/34/pdf-vor |
