3 pounds potatoes
1 2/3 cups black olives
1 cup chopped celery
1/3 cup chopped green onions
1 1/2 tablespoons white wine vinegar
2 tablespoons vegetable oil
1 1/2 teaspoons salt
3/4 teaspoon dried dill weed
1/4 teaspoon ground black pepper
1 cup plain yogurt
2 teaspoons prepared mustard
1 teaspoon honey
1/4 teaspoon garlic salt