@techreport{kam974,
 author = {D. Garijo, A. Goodall, and J. Ne\v{s}et\v{r}il},
 title = {Distinguishing graphs by their left and right homomorphism profiles},
 institution = {KAM-DIMATIA Series},
 year = {2010},
 number = {974},
 type = {prepublication}
}