A PHP Error was encountered

Severity: Notice

Message: Only variables should be passed by reference

Filename: gettext/gettext.php

Line Number: 66


%Aigaion2 BibTeX export from 
%Saturday 15 November 2025 09:11:03 AM

@MISC{sacyr_patent2009,
        author = {Esteban, Antonio and Gonzalez-Jimenez, Javier and Ramírez-Rodríguez, Antonio and Blanco, José-Luis and Moreno, Francisco-Angel and Arevalo-Espejo, Vicente and Galindo, Cipriano},
         month = {{{mar}}},
         title = {Vehículo terrestre para el análisis topográfico de firmes de infraestructuras lineales (in Spanish)},
          year = {2009},
  howpublished = {ES1069405 U},
           url = {invenes.oepm.es/InvenesWeb/detalle?referencia=U200802582}
}