Letters in Mathematical Physics
Letters in Mathematical Physics > 2014 > 104 > 3 > 311-339
Letters in Mathematical Physics > 2014 > 104 > 3 > 299-309
Letters in Mathematical Physics > 2014 > 104 > 3 > 243-270
Letters in Mathematical Physics > 2014 > 104 > 3 > 361-371
Letters in Mathematical Physics > 2014 > 104 > 3 > 271-298
Letters in Mathematical Physics > 2014 > 104 > 3 > 341-360