Joze Bavcon's 2020 offering is now live on his website!
http://www.botanic-gardens-ljubljana.com/de/der-laden/pflanzenThis is one of the methods, including sales of his excellent book (On reduced price I notice), that supports a hard pressed horticultural university!
Drops can be ordered online and then will be speed posted to customers.
The economics are manifestly simple, you buy the pot, which may have more than just one bulb! The prices are in Euros. If you see any you like, drop Joze an email to order them on: joze.bavcon@guest.arnes.si
These do very well and include some lovely unnamed & named varieties to add to your collection.
Keep looking at the site as more will be added.