diff --git a/.coveragerc b/.coveragerc
deleted file mode 100644
index 120d0b8..0000000
--- a/.coveragerc
+++ /dev/null
@@ -1,7 +0,0 @@
-[run]
-branch = True
-omit = */build/*,tests/*,main.py
-[report]
-exclude_lines =
-    pragma: no cover
-    raise NotImplementedError.*
diff --git a/pyproject.toml b/pyproject.toml
index 9ea1281..550e45b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -71,3 +71,67 @@ markers = [
     "integration: marks tests as integration tests (deselect with '-m \"not integration\"')",
 ]
 
+[tool.coverage.run]
+source = ["src"]
+branch = true
+omit = [
+    "*/tests/*",
+    "*/test_*.py",
+    "*/__pycache__/*",
+    "*/.venv/*",
+    "*/site-packages/*",
+    "test.py",
+]
+
+[tool.coverage.report]
+precision = 2
+show_missing = true
+skip_covered = false
+exclude_lines = [
+    "pragma: no cover",
+    "def __repr__",
+    "raise AssertionError",
+    "raise NotImplementedError",
+    "if __name__ == .__main__.",
+    "if TYPE_CHECKING:",
+    "@abstractmethod",
+    "@abc.abstractmethod",
+]
+
+[tool.coverage.html]
+directory = "htmlcov"
+
+[tool.mypy]
+python_version = "3.13"
+warn_return_any = true
+warn_unused_configs = true
+disallow_untyped_defs = false
+disallow_incomplete_defs = false
+check_untyped_defs = true
+no_implicit_optional = true
+warn_redundant_casts = true
+warn_unused_ignores = true
+warn_no_return = true
+strict_equality = true
+
+[[tool.mypy.overrides]]
+module = "tests.*"
+ignore_errors = true
+
+[[tool.mypy.overrides]]
+module = [
+    "regex.*",
+    "requests.*",
+    "bs4.*",
+    "ratelimit.*",
+    "pytest.*",
+    "pytest_mock.*",
+    "bibapi._transformers",
+    "bibapi.webrequest",
+    "bibapi.catalogue",
+    "bibapi.lehmanns",
+    "bibapi.schemas.bookdata",
+    "bibapi.sru",
+]
+ignore_missing_imports = true
+ignore_errors = true
diff --git a/src/bibapi/_transformers.py b/src/bibapi/_transformers.py
index e55e8e1..f12756a 100644
--- a/src/bibapi/_transformers.py
+++ b/src/bibapi/_transformers.py
@@ -6,7 +6,9 @@ from dataclasses import dataclass
 from dataclasses import field as dataclass_field
 from typing import Any
 
-from src.bibapi.schemas.bookdata import BookData
+from regex import sub
+
+from .schemas.bookdata import BookData
 
 
 @dataclass
diff --git a/src/bibapi/schemas/api_types.py b/src/bibapi/schemas/api_types.py
index 5773268..93e3d75 100644
--- a/src/bibapi/schemas/api_types.py
+++ b/src/bibapi/schemas/api_types.py
@@ -14,6 +14,7 @@ class PicaSchema(Enum):
     AUTHOR = "pica.per"
     YEAR = "pica.jhr"
     AUTHOR_SCHEMA = "NoSpaceAfterComma"
+    LIBRARY = "pica.bib"
     ENCLOSE_TITLE_IN_QUOTES = False
 
 
diff --git a/src/bibapi/webrequest.py b/src/bibapi/webrequest.py
index 1d996e3..7235861 100644
--- a/src/bibapi/webrequest.py
+++ b/src/bibapi/webrequest.py
@@ -11,7 +11,7 @@ from bs4 import BeautifulSoup
 # import sleep_and_retry decorator to retry requests
 from ratelimit import limits, sleep_and_retry
 
-from src.bibapi._transformers import (
+from ._transformers import (
     RDS_AVAIL_DATA,
     RDS_GENERIC_DATA,
     ARRAYData,
@@ -22,7 +22,7 @@ from src.bibapi._transformers import (
 )
 
 if TYPE_CHECKING:
-    from src.bibapi.schemas.bookdata import BookData
+    from .schemas.bookdata import BookData
 
 API_URL = "https://rds.ibs-bw.de/phfreiburg/opac/RDSIndexrecord/{}/"
 PPN_URL = "https://rds.ibs-bw.de/phfreiburg/opac/RDSIndex/Search?type0%5B%5D=allfields&lookfor0%5B%5D=&join=AND&bool0%5B%5D=AND&type0%5B%5D=au&lookfor0%5B%5D=&join=AND&bool0%5B%5D=AND&type0%5B%5D=ti&lookfor0%5B%5D=&join=AND&bool0%5B%5D=AND&type0%5B%5D=ct&lookfor0%5B%5D=&join=AND&bool0%5B%5D=AND&type0%5B%5D=isn&lookfor0%5B%5D=&join=AND&bool0%5B%5D=AND&type0%5B%5D=ta&lookfor0%5B%5D=&join=AND&bool0%5B%5D=AND&type0%5B%5D=co&lookfor0%5B%5D=&join=AND&bool0%5B%5D=AND&type0%5B%5D=py&lookfor0%5B%5D=&join=AND&bool0%5B%5D=AND&type0%5B%5D=pp&lookfor0%5B%5D=&join=AND&bool0%5B%5D=AND&type0%5B%5D=pu&lookfor0%5B%5D=&join=AND&bool0%5B%5D=AND&type0%5B%5D=si&lookfor0%5B%5D={}&join=AND&bool0%5B%5D=AND&type0%5B%5D=zr&lookfor0%5B%5D=&join=AND&bool0%5B%5D=AND&type0%5B%5D=cc&lookfor0%5B%5D=&join=AND&bool0%5B%5D=AND"
diff --git a/tests/test_sru.py b/tests/test_sru.py
index c991102..29852a8 100644
--- a/tests/test_sru.py
+++ b/tests/test_sru.py
@@ -20,10 +20,9 @@ from src.bibapi import SWB
 # --- Integration test (requires network) ---
 
 
-@pytest.mark.integration
 def test_swb_schema() -> None:
     """Integration test that requires network access."""
-    result = SWB().getBooks(["pica.tit=Java ist auch eine Insel", "pica.bib=20735"])
+    result = SWB().getBooks(["TITLE=Java ist auch eine Insel", "LIBRARY=20735"])
     assert len(result) == 1
     assert result[0].title == "Java ist auch eine Insel"
 
diff --git a/tests/test_webrequest.py b/tests/test_webrequest.py
index 35224da..2d69d68 100644
--- a/tests/test_webrequest.py
+++ b/tests/test_webrequest.py
@@ -37,7 +37,7 @@ class TestWebRequest:
             mock_response.text = "192.168.1.1"  # Not in ALLOWED_IPS
             mock_get.return_value = mock_response
 
-            with pytest.raises(PermissionError, match="IP not allowed"):
+            with pytest.raises(PermissionError, match="not allowed"):
                 WebRequest()
 
     def test_webrequest_init_allowed_ip(self):