public void ToOsis1()
        {
            var lpd = MainPage.ReadLeseplanData();

            foreach (var i in lpd.Entries.SelectMany(p => p.Items))
            {
                var vers = i.Ref;
                var osis = BibelVersConverter.ToOsis(vers);
                Assert.IsNotNull(osis);
            }
        }
        public void ToOsis2(string vers, string osis)
        {
            var osis2 = BibelVersConverter.ToOsis(vers);

            Assert.AreEqual(osis, osis2);
        }