Just found this http://www.eurobarkcontrol.co.uk/ds...FclZ3god0E0Ayg#page=Main-Tab&pk_kwd={keyword} wonder if it actually would work?
Complain to the council. They'll send a letter to the owners saying someone has complained. They'll be forced to do something about it
With respect, that's a real crappy thing to do straight off the bat. The OP should go and talk to the neighbour first. What the council would do is at worst put a monitoring van or device to check for barking noise and go from there.