| article html file updated | 8 February 2020 02:52 CET | Update | https://www.mdpi.com/2306-5354/4/2/29 |
| article html file updated | 24 September 2019 03:50 CEST | Update | - |
| article html file updated | 4 May 2019 03:40 CEST | Update | - |
| article html file updated | 28 June 2017 12:34 CEST | Update | - |
| article html file updated | 5 April 2017 06:11 CEST | Original file | - |
| article xml uploaded. | 5 April 2017 06:09 CEST | Original file | https://www.mdpi.com/2306-5354/4/2/29/xml |
| article pdf uploaded. | 5 April 2017 06:09 CEST | Updated version of record | https://www.mdpi.com/2306-5354/4/2/29/pdf |
| article pdf uploaded. | 4 April 2017 14:57 CEST | Version of Record | https://www.mdpi.com/2306-5354/4/2/29/pdf-vor |
