article html file updated | 29 August 2025 23:10 CEST | Update | https://www.mdpi.com/1996-1073/9/6/421 |
article html file updated | 16 July 2022 02:31 CEST | Update | - |
article html file updated | 7 February 2020 09:28 CET | Update | - |
article html file updated | 5 May 2019 14:16 CEST | Update | - |
article html file updated | 27 March 2019 06:07 CET | Update | - |
article html file updated | 28 June 2016 09:28 CEST | Update | - |
article html file updated | 30 May 2016 11:12 CEST | Original file | - |
article xml uploaded. | 30 May 2016 11:10 CEST | Original file | https://www.mdpi.com/1996-1073/9/6/421/xml |
article pdf uploaded. | 30 May 2016 11:10 CEST | Version of Record | https://www.mdpi.com/1996-1073/9/6/421/pdf |