1 Subjects: “...Spain...”

2 Subjects: “...Spain...”

3 “..., the Netherlands, Turkey, Brazil, Portugal, Denmark, France, Bulgaria, Sweden, Hungary, Spain, the UAE, the UK...”

4 “..., France, Italy, Japan, Malaysia, Mexico, Pakistan, Poland, Qatar, Serbia, Slovenia, Spain, Sweden, Tunisia...”

5 “... the Computer Engineering Department at the University of Alcalá (Madrid, Spain). A total of 32 manuscripts were...”

6 “..., Spain, Taiwan, USA, Finland, China, Slovenia, the Netherlands, and Germany participated in writing...”