Estadisticas : Assessment of human stability in sewer systems during dry weather conditions Russo B. Visitas:246 129 ( Estados Unidos de América ) 44 ( Hong kong ) 37 ( Singapur ) 11 ( Reino Unido ) 8 ( Rusia ) 7 ( Letonia ) 3 ( China ) 3 ( Alemania ) 2 ( Finlandia ) 1 ( México ) 1 ( Austria ) Descargas: 54
129 ( Estados Unidos de América ) 
44 ( Hong kong ) 
37 ( Singapur ) 
11 ( Reino Unido ) 
8 ( Rusia ) 
7 ( Letonia ) 
3 ( China ) 
3 ( Alemania ) 
2 ( Finlandia ) 
1 ( México ) 
1 ( Austria )