Restorers work in the paint and sculpture sector of the restoration and conservation workshop of the Centro Tarea of the San Martin University, in the city of Buenos Aires, Argentina, on May 21, 2013. Within the spectra of tangible heritage objects, the Centro Tarea has specialized in the conservation and restoration of the picture and sculpture production, as well as in the conservation and restoration of bibliographic documentation and archive. (Xinhua/Martin Zabala)

Nestor Barrio (R), manager of the Centro Tarea of the San Martin University, and dean of the Cultural Heritage Investigations Institute (IIPC, by its Spanish acronym) analyzes an artwork with members of the center, in the city of Buenos Aires, Argentina, on May 21, 2013. Within the spectra of tangible heritage objects, the Centro Tarea has specialized in the conservation and restoration of the picture and sculpture production, as well as in the conservation and restoration of bibliographic documentation and archive. (Xinhua/Martin Zabala)

The restorer Luciana Feld cleans a framework in the restoration and conservation workshop of the Centro Tarea of the San Martin University, in the city of Buenos Aires, Argentina, on May 21, 2013. Within the spectra of tangible heritage objects, the Centro Tarea has specialized in the conservation and restoration of the picture and sculpture production, as well as in the conservation and restoration of bibliographic documentation and archive. (Xinhua/Martin Zabala)

The restorer Romina Gatt works with a sculpture in the restoration and conservation workshop of the Centro Tarea of the San Martin University, in the city of Buenos Aires, Argentina, on May 21, 2013. Within the spectra of tangible heritage objects, the Centro Tarea has specialized in the conservation and restoration of the picture and sculpture production, as well as in the conservation and restoration of bibliographic documentation and archive. (Xinhua/Martin Zabala)

The restorer Romina Gatt works with a sculpture in the restoration and conservation workshop of the Centro Tarea of the San Martin University, in the city of Buenos Aires, Argentina, on May 21, 2013. Within the spectra of tangible heritage objects, the Centro Tarea has specialized in the conservation and restoration of the picture and sculpture production, as well as in the conservation and restoration of bibliographic documentation and archive. (Xinhua/Martin Zabala)

Investigator Fernando Marte performs an analysis of the particle of an sculpture in the restoration and conservation workshop of the Centro Tarea of the San Martin University, in the city of Buenos Aires, Argentina, on May 21, 2013. Within the spectra of tangible heritage objects, the Centro Tarea has specialized in the conservation and restoration of the picture and sculpture production, as well as in the conservation and restoration of bibliographic documentation and archive. (Xinhua/Martin Zabala)

A restorer works on a painting in the restoration and conservation workshop of the Centro Tarea of the San Martin University, in the city of Buenos Aires, Argentina, on May 21, 2013. Within the spectra of tangible heritage objects, the Centro Tarea has specialized in the conservation and restoration of the picture and sculpture production, as well as in the conservation and restoration of bibliographic documentation and archive. (Xinhua/Martin Zabala)