| article html file updated | 30 August 2025 00:37 CEST | Update | https://www.mdpi.com/2078-2489/8/1/34 | 
| article html file updated | 16 July 2022 05:16 CEST | Update | - | 
| article html file updated | 8 February 2020 01:25 CET | Update | - | 
| article html file updated | 23 September 2019 19:32 CEST | Update | - | 
| article html file updated | 4 May 2019 06:50 CEST | Update | - | 
| article html file updated | 30 March 2017 03:33 CEST | Update | - | 
| article html file updated | 15 March 2017 14:38 CET | Update | - | 
| article xml uploaded. | 15 March 2017 14:36 CET | Update | https://www.mdpi.com/2078-2489/8/1/34/xml | 
| article pdf uploaded. | 15 March 2017 14:36 CET | Updated version of record | https://www.mdpi.com/2078-2489/8/1/34/pdf | 
| article html file updated | 14 March 2017 10:26 CET | Original file | - |