| article html file updated | 8 February 2020 09:28 CET | Update | https://www.mdpi.com/2306-5354/4/3/61 |
| article html file updated | 25 September 2019 14:40 CEST | Update | - |
| article html file updated | 3 May 2019 15:14 CEST | Update | - |
| article html file updated | 30 September 2017 07:41 CEST | Update | - |
| article html file updated | 28 June 2017 12:13 CEST | Original file | - |
| article xml uploaded. | 28 June 2017 12:11 CEST | Original file | https://www.mdpi.com/2306-5354/4/3/61/xml |
| article pdf uploaded. | 28 June 2017 12:11 CEST | Version of Record | https://www.mdpi.com/2306-5354/4/3/61/pdf |
