[OSM-talk-be] int_ref, ref spelling, no space between letter and number....

[Jakka]

Hi,
Where can I see and read what is the correct spelling of the E and other 
road network like A?
Is there a space between the letter and number?
The wiki 
https://wiki.openstreetmap.org/wiki/WikiProject_Europe/E-road_network 
and https://en.wikipedia.org/wiki/International_E-road_network are not 
clear about that......
See the mapillary 
https://www.mapillary.com/map/im/vEtPrDgYQ9nVD2kfehABQg example there 
are no spaces so we should adapt all those tags?
I see that most of int_ref is with space en same ref an nat_ref 
without???? But not always.....