| article html file updated | 7 February 2020 05:43 CET | Update | https://www.mdpi.com/1999-4907/7/3/64 |
| article html file updated | 5 May 2019 21:51 CEST | Update | - |
| article html file updated | 26 March 2019 23:06 CET | Update | - |
| article html file updated | 29 March 2016 11:46 CEST | Original file | - |
| article pdf uploaded. | 14 March 2016 02:12 CET | Updated version of record | https://www.mdpi.com/1999-4907/7/3/64/pdf |
| article xml uploaded. | 14 March 2016 02:12 CET | Update | https://www.mdpi.com/1999-4907/7/3/64/xml |
| article pdf uploaded. | 10 March 2016 13:32 CET | Version of Record | https://www.mdpi.com/1999-4907/7/3/64/pdf-vor |
