Where can I find Particle in Werthenstein?

Particle can also be found in these cities:

Buchrain Ebikon Egolzwil Emmen Hitzkirch Horw Huttwil Kriens Lucerne Malters Oberkirch Rain Ruswil Sarnen Sempach Stans Sursee Urswil Wolhusen Zell

You can also find this in Werthenstein:

Baguette Yeast Dry Rye Breads Granola Bar Pies Cola Legumes Ketchup Chips Remoulade